diff --git a/pineappl/src/empty_subgrid.rs b/pineappl/src/empty_subgrid.rs
index 0f7db160..907d10cb 100644
--- a/pineappl/src/empty_subgrid.rs
+++ b/pineappl/src/empty_subgrid.rs
@@ -55,8 +55,8 @@ impl Subgrid for EmptySubgridV1 {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::packed_array::PackedArray;
     use crate::import_subgrid::ImportSubgridV1;
+    use crate::packed_array::PackedArray;
     use crate::v0;
 
     #[test]
diff --git a/pineappl/src/evolution.rs b/pineappl/src/evolution.rs
index 7a865894..0669dc8a 100644
--- a/pineappl/src/evolution.rs
+++ b/pineappl/src/evolution.rs
@@ -3,8 +3,8 @@
 use super::boc::{Channel, Kinematics, Order};
 use super::convolutions::ConvType;
 use super::grid::{Grid, GridError};
-use super::packed_array::PackedArray;
 use super::import_subgrid::ImportSubgridV1;
+use super::packed_array::PackedArray;
 use super::pids::PidBasis;
 use super::subgrid::{NodeValues, Subgrid, SubgridEnum};
 use float_cmp::approx_eq;
diff --git a/pineappl/src/grid.rs b/pineappl/src/grid.rs
index 1bc73a81..bc3f1bd9 100644
--- a/pineappl/src/grid.rs
+++ b/pineappl/src/grid.rs
@@ -6,9 +6,9 @@ use super::convolutions::{Conv, ConvType, ConvolutionCache};
 use super::empty_subgrid::EmptySubgridV1;
 use super::evolution::{self, AlphasTable, EvolveInfo, OperatorSliceInfo};
 use super::fk_table::FkTable;
-use super::interpolation::Interp;
-use super::interp_subgrid::InterpSubgridV1;
 use super::import_subgrid::ImportSubgridV1;
+use super::interp_subgrid::InterpSubgridV1;
+use super::interpolation::Interp;
 use super::pids::PidBasis;
 use super::subgrid::{NodeValues, Subgrid, SubgridEnum};
 use super::v0;
diff --git a/pineappl/src/lib.rs b/pineappl/src/lib.rs
index ac05684c..f225dff0 100644
--- a/pineappl/src/lib.rs
+++ b/pineappl/src/lib.rs
@@ -43,9 +43,9 @@ pub mod empty_subgrid;
 pub mod evolution;
 pub mod fk_table;
 pub mod grid;
-pub mod interpolation;
+pub mod import_subgrid;
 pub mod interp_subgrid;
+pub mod interpolation;
 pub mod packed_array;
-pub mod import_subgrid;
 pub mod pids;
 pub mod subgrid;
diff --git a/pineappl/src/subgrid.rs b/pineappl/src/subgrid.rs
index cb3bc91c..aefad922 100644
--- a/pineappl/src/subgrid.rs
+++ b/pineappl/src/subgrid.rs
@@ -1,8 +1,8 @@
 //! Module containing the trait `Subgrid` and supporting structs.
 
 use super::empty_subgrid::EmptySubgridV1;
-use super::interp_subgrid::InterpSubgridV1;
 use super::import_subgrid::ImportSubgridV1;
+use super::interp_subgrid::InterpSubgridV1;
 use enum_dispatch::enum_dispatch;
 // use float_cmp::approx_eq;
 // use ndarray::Array3;
diff --git a/pineappl/src/v0.rs b/pineappl/src/v0.rs
index 0d45d643..b601ecf9 100644
--- a/pineappl/src/v0.rs
+++ b/pineappl/src/v0.rs
@@ -3,9 +3,9 @@ use super::boc::{Channel, Kinematics, Order, ScaleFuncForm, Scales};
 use super::convolutions::{Conv, ConvType};
 use super::empty_subgrid::EmptySubgridV1;
 use super::grid::{Grid, GridError, Mmv4, MoreMembers};
+use super::import_subgrid::ImportSubgridV1;
 use super::interpolation::{Interp, InterpMeth, Map, ReweightMeth};
 use super::packed_array::PackedArray;
-use super::import_subgrid::ImportSubgridV1;
 use super::pids::PidBasis;
 use super::subgrid::{Mu2, NodeValues};
 use ndarray::Array3;
@@ -162,10 +162,7 @@ pub fn read_uncompressed_v0(mut reader: impl BufRead) -> Result<Grid, GridError>
             .into_iter()
             .collect(),
         interps: default_interps(convolutions.len()),
-        convolutions: convolutions
-            .into_iter()
-            .flatten()
-            .collect(),
+        convolutions: convolutions.into_iter().flatten().collect(),
         pid_basis: grid
             .key_values()
             .and_then(|kv| kv.get("lumi_id_types"))
diff --git a/pineappl_cli/src/helpers.rs b/pineappl_cli/src/helpers.rs
index 747d5aaa..14a82383 100644
--- a/pineappl_cli/src/helpers.rs
+++ b/pineappl_cli/src/helpers.rs
@@ -2,6 +2,7 @@ use super::GlobalConfiguration;
 use anyhow::{anyhow, ensure, Context, Error, Result};
 use lhapdf::{Pdf, PdfSet};
 use ndarray::{Array3, Ix3};
+use pineappl::boc::{ScaleFuncForm, Scales};
 use pineappl::convolutions::{Conv, ConvType, ConvolutionCache};
 use pineappl::grid::Grid;
 use prettytable::format::{FormatBuilder, LinePosition, LineSeparator};
@@ -141,17 +142,17 @@ pub const SCALES_VECTOR_REN_FAC: [(f64, f64, f64); 9] = [
     (0.5, 2.0, 1.0),
 ];
 
-// const SCALES_VECTOR_REN_FRG: [(f64, f64, f64); 9] = [
-//     (1.0, 1.0, 1.0),
-//     (2.0, 1.0, 2.0),
-//     (0.5, 1.0, 0.5),
-//     (2.0, 1.0, 1.0),
-//     (1.0, 1.0, 2.0),
-//     (0.5, 1.0, 1.0),
-//     (1.0, 1.0, 0.5),
-//     (2.0, 1.0, 0.5),
-//     (0.5, 1.0, 2.0),
-// ];
+const SCALES_VECTOR_REN_FRG: [(f64, f64, f64); 9] = [
+    (1.0, 1.0, 1.0),
+    (2.0, 1.0, 2.0),
+    (0.5, 1.0, 0.5),
+    (2.0, 1.0, 1.0),
+    (1.0, 1.0, 2.0),
+    (0.5, 1.0, 1.0),
+    (1.0, 1.0, 0.5),
+    (2.0, 1.0, 0.5),
+    (0.5, 1.0, 2.0),
+];
 
 const SCALES_VECTOR_27: [(f64, f64, f64); 27] = [
     (1.0, 1.0, 1.0),
@@ -348,15 +349,18 @@ pub fn convolve_scales(
     }
 }
 
-pub fn scales_vector(_grid: &Grid, scales: usize) -> &[(f64, f64, f64)] {
-    match scales {
-        1 => &SCALES_VECTOR_27[0..1],
-        3 => &SCALES_VECTOR_27[0..3],
-        // TODO: fix 7 and 9 for cases where there is a fragmentation scale
-        7 => &SCALES_VECTOR_REN_FAC[0..7],
-        9 => &SCALES_VECTOR_REN_FAC[..],
-        17 => &SCALES_VECTOR_27[0..17],
-        27 => &SCALES_VECTOR_27[..],
+pub fn scales_vector(grid: &Grid, scales: usize) -> &[(f64, f64, f64)] {
+    let Scales { fac, frg, .. } = grid.scales();
+
+    match (fac, frg, scales) {
+        (_, _, 1) => &SCALES_VECTOR_27[0..1],
+        (_, _, 3) => &SCALES_VECTOR_27[0..3],
+        (_, ScaleFuncForm::NoScale, 7) => &SCALES_VECTOR_REN_FAC[0..7],
+        (_, ScaleFuncForm::NoScale, 9) => &SCALES_VECTOR_REN_FAC[..],
+        (ScaleFuncForm::NoScale, _, 7) => &SCALES_VECTOR_REN_FRG[0..7],
+        (ScaleFuncForm::NoScale, _, 9) => &SCALES_VECTOR_REN_FRG[..],
+        (_, _, 17) => &SCALES_VECTOR_27[0..17],
+        (_, _, 27) => &SCALES_VECTOR_27[..],
         _ => unreachable!(),
     }
 }
diff --git a/pineappl_cli/src/import/applgrid.rs b/pineappl_cli/src/import/applgrid.rs
index 66fc2842..a3c03224 100644
--- a/pineappl_cli/src/import/applgrid.rs
+++ b/pineappl_cli/src/import/applgrid.rs
@@ -3,9 +3,9 @@ use lhapdf::Pdf;
 use pineappl::boc::{Channel, Kinematics, Order, ScaleFuncForm, Scales};
 use pineappl::convolutions::{Conv, ConvType};
 use pineappl::grid::Grid;
+use pineappl::import_subgrid::ImportSubgridV1;
 use pineappl::interpolation::{Interp, InterpMeth, Map, ReweightMeth};
 use pineappl::packed_array::PackedArray;
-use pineappl::import_subgrid::ImportSubgridV1;
 use pineappl::pids::PidBasis;
 use pineappl::subgrid::{Mu2, NodeValues};
 use pineappl_applgrid::ffi::{self, grid};
diff --git a/pineappl_cli/src/import/fastnlo.rs b/pineappl_cli/src/import/fastnlo.rs
index 82691d3f..0b3a260f 100644
--- a/pineappl_cli/src/import/fastnlo.rs
+++ b/pineappl_cli/src/import/fastnlo.rs
@@ -5,9 +5,9 @@ use pineappl::bin::BinRemapper;
 use pineappl::boc::{Channel, Kinematics, Order, ScaleFuncForm, Scales};
 use pineappl::convolutions::{Conv, ConvType};
 use pineappl::grid::Grid;
+use pineappl::import_subgrid::ImportSubgridV1;
 use pineappl::interpolation::{Interp, InterpMeth, Map, ReweightMeth};
 use pineappl::packed_array::PackedArray;
-use pineappl::import_subgrid::ImportSubgridV1;
 use pineappl::pids::PidBasis;
 use pineappl::subgrid::{Mu2, NodeValues};
 use pineappl_fastnlo::ffi::{
diff --git a/pineappl_cli/src/import/fktable.rs b/pineappl_cli/src/import/fktable.rs
index 5517bc1a..d4bce61f 100644
--- a/pineappl_cli/src/import/fktable.rs
+++ b/pineappl_cli/src/import/fktable.rs
@@ -5,9 +5,9 @@ use pineappl::boc::{Channel, Kinematics, Order, ScaleFuncForm, Scales};
 use pineappl::channel;
 use pineappl::convolutions::{Conv, ConvType};
 use pineappl::grid::Grid;
+use pineappl::import_subgrid::ImportSubgridV1;
 use pineappl::interpolation::{Interp, InterpMeth, Map, ReweightMeth};
 use pineappl::packed_array::PackedArray;
-use pineappl::import_subgrid::ImportSubgridV1;
 use pineappl::pids::PidBasis;
 use pineappl::subgrid::NodeValues;
 use std::fs::File;
diff --git a/pineappl_cli/src/write.rs b/pineappl_cli/src/write.rs
index 20af0a85..8435a551 100644
--- a/pineappl_cli/src/write.rs
+++ b/pineappl_cli/src/write.rs
@@ -581,7 +581,9 @@ impl Subcommand for Opts {
                 }
                 OpsArg::ScaleByBin(factors) => grid.scale_by_bin(factors),
                 OpsArg::ScaleByOrder(factors) => {
-                    grid.scale_by_order(factors[0], factors[1], factors[2], factors[3], factors[4], 1.0);
+                    grid.scale_by_order(
+                        factors[0], factors[1], factors[2], factors[3], factors[4], 1.0,
+                    );
                 }
                 OpsArg::SetKeyValue(key_value) => {
                     grid.metadata_mut()