diff --git a/scripts/dev_fd_quadrature.jl b/scripts/dev_fd_quadrature.jl
index 40c9d44..f2d0902 100644
--- a/scripts/dev_fd_quadrature.jl
+++ b/scripts/dev_fd_quadrature.jl
@@ -125,8 +125,8 @@ function ρPold(a,par::AbstractCosmoParams)
     m = par.Σm_ν
     qmin=1e-18
     qmax=1e1
-    ρ = 4π * a^(-4) * quadgk(q ->  q^2 * √( q^2 + (a*m)^2 ) * f0(q,par) ,qmin, qmax,rtol=1e-6)[1]
-    P = 4π/3 * a^(-4) * quadgk(q -> q^2 * q^2 /√( q^2 + (a*m)^2) * f0(q,par), qmin, qmax,rtol=1e-6)[1]
+    ρ = 4π * a^(-4) * quadgk(q ->  q^2 * √( q^2 + (a*m)^2 ) * f0(q) ,qmin, qmax,rtol=1e-6)[1]
+    P = 4π/3 * a^(-4) * quadgk(q -> q^2 * q^2 /√( q^2 + (a*m)^2) * f0(q), qmin, qmax,rtol=1e-6)[1]
     return ρ,P#,norm
 end
 H₀(par::AbstractCosmoParams) = par.h * km_s_Mpc_100
diff --git a/src/perturbations.jl b/src/perturbations.jl
index ee1d12e..50de5b9 100644
--- a/src/perturbations.jl
+++ b/src/perturbations.jl
@@ -89,7 +89,7 @@ function boltsolve_rsa(hierarchy::Hierarchy{T}, ode_alg=KenCarp4(); reltol=1e-6,
     x_grid = hierarchy.bg.x_grid
     pertlen = 2(hierarchy.ℓᵧ+1)+(hierarchy.ℓ_ν+1)+(hierarchy.ℓ_mν+1)*hierarchy.nq+5
     results=zeros(pertlen,length(x_grid))
-    for i in 1:length(x_grid) results[:,i] = perturb(x_grid[i]) end
+    for i in eachindex(x_grid) results[:,i] = perturb(x_grid[i]) end
     #replace the late-time perts with RSA approx (assuming we don't change rsa switch)
     #this_rsa_switch = x_grid[argmin(abs.(hierarchy.k .* hierarchy.bg.η.(x_grid) .- 45))]
 
@@ -102,7 +102,7 @@ function boltsolve_rsa(hierarchy::Hierarchy{T}, ode_alg=KenCarp4(); reltol=1e-6,
     x_grid_rsa = x_grid[x_grid.>this_rsa_switch]
     results_rsa = results[:,x_grid.>this_rsa_switch]
     #(re)-compute the RSA perts so we can write them to the output vector
-    for i in 1:length(x_grid_rsa)
+    for i in eachindex(x_grid_rsa)
         rsa_perts!(view(results_rsa,:,i),hierarchy,x_grid_rsa[i]) #to mutate need to use view...
     end
     results[:,x_grid.>this_rsa_switch] = results_rsa
diff --git a/test/runtests.jl b/test/runtests.jl
index 85a9817..e4899b1 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -140,10 +140,10 @@ end
     class_eta = bg.η.(class_x)
 
 
-    TOL = 1e-3
-    @test all(abs.(itphibolt.(class_x) ./ itpphiclass.(class_x) .- 1) .< TOL)
-    @test all(abs.(-itdeltbbolt.(class_x) ./ itdeltbclass.(class_x) .- 1) .< TOL)
-    @test all(abs.(itpgambolt.(class_x) ./ itpgambolt.(class_x) .- 1) .< TOL)
+    reltol = 1e-3
+    @test all(abs.(itphibolt.(class_x) ./ itpphiclass.(class_x) .- 1) .< reltol)
+    @test all(abs.(-itdeltbbolt.(class_x) ./ itdeltbclass.(class_x) .- 1) .< reltol)
+    @test all(abs.(itpgambolt.(class_x) ./ itpgambolt.(class_x) .- 1) .< reltol)
 end
 
 @testset "cell_camb_1e-1" begin
@@ -177,9 +177,9 @@ end
     itpee_b = LinearInterpolation(ℓs, @.(ℓfac * Cℓee))
 
     #test line
-    TOL = 1.1e-1
+    reltol = 1.1e-1
     #FIXME should really do this on the finer of the two grids but need to rerun...
-    @test all(abs.(itptt_b.(ℓs)  ./ itptt.(ℓs) .- 1)  .< TOL)
+    @test all(abs.(itptt_b.(ℓs)  ./ itptt.(ℓs) .- 1)  .< reltol)
     # all(abs.(itpte_b.(ℓs)  .- itpte.(ℓs) .- 1)  .< TOL) # zero-crossing will be an issue here, do diff check
-    @test all(abs.(itpee_b.(ℓs)  ./ itpee.(ℓs) .- 1)  .< TOL)
+    @test all(abs.(itpee_b.(ℓs)  ./ itpee.(ℓs) .- 1)  .< reltol)
 end