diff --git a/euler/src/lib.rs b/euler/src/lib.rs
index 4802ae8..9de5928 100644
--- a/euler/src/lib.rs
+++ b/euler/src/lib.rs
@@ -421,6 +421,7 @@ pub struct VortexParameters {
 }
 
 #[allow(clippy::too_many_arguments)]
+#[allow(clippy::many_single_char_names)]
 pub fn vortex(
     rho: ArrayViewMut1<Float>,
     rhou: ArrayViewMut1<Float>,
diff --git a/multigrid/src/main.rs b/multigrid/src/main.rs
index 657de44..0b8b512 100644
--- a/multigrid/src/main.rs
+++ b/multigrid/src/main.rs
@@ -130,16 +130,13 @@ impl System {
 
     /// Suggested maximum dt for this problem
     fn max_dt(&self) -> Float {
-        let c_max = if self.operators.iter().any(|op| {
+        let is_h2 = self.operators.iter().any(|op| {
             op.as_ref().either(
                 |op| op.is_h2xi() || op.is_h2eta(),
                 |op| op.is_h2xi() || op.is_h2eta(),
             )
-        }) {
-            0.5
-        } else {
-            1.0
-        };
+        });
+        let c_max = if is_h2 { 0.5 } else { 1.0 };
         let mut max_dt: Float = Float::INFINITY;
 
         for (field, metrics) in self.fnow.iter().zip(self.metrics.iter()) {
@@ -220,7 +217,7 @@ fn main() {
         op: operators,
         integration_time,
         vortex: vortexparams,
-    } = config.to_runtime();
+    } = config.into_runtime();
 
     let mut sys = System::new(grids, bt, operators);
     sys.vortex(0.0, &vortexparams);
diff --git a/multigrid/src/parsing.rs b/multigrid/src/parsing.rs
index 9daf1ba..506bdf3 100644
--- a/multigrid/src/parsing.rs
+++ b/multigrid/src/parsing.rs
@@ -154,7 +154,7 @@ pub struct RuntimeConfiguration {
 }
 
 impl Configuration {
-    pub fn to_runtime(mut self) -> RuntimeConfiguration {
+    pub fn into_runtime(mut self) -> RuntimeConfiguration {
         let default = self.grids.shift_remove("default").unwrap_or_default();
         let names = self.grids.keys().cloned().collect();
         let grids = self
diff --git a/sbp/src/operators.rs b/sbp/src/operators.rs
index 8479510..180fcf3 100644
--- a/sbp/src/operators.rs
+++ b/sbp/src/operators.rs
@@ -370,7 +370,7 @@ fn diff_op_col_simd(
                     for (iprev, &bl) in bl.iter().enumerate() {
                         f = index_to_simd(iprev).mul_adde(SimdT::splat(bl), f);
                     }
-                    f = f * idx;
+                    f *= idx;
 
                     unsafe {
                         f.write_to_slice_unaligned(std::slice::from_raw_parts_mut(
@@ -408,7 +408,7 @@ fn diff_op_col_simd(
                         let offset = ifut - half_diag_width + id;
                         f = index_to_simd(offset).mul_adde(SimdT::splat(d), f);
                     }
-                    f = f * idx;
+                    f *= idx;
                     unsafe {
                         // puts simd along stride 1, j never goes past end of slice
                         f.write_to_slice_unaligned(std::slice::from_raw_parts_mut(