diff --git a/Matlab/WaveVortexModel/@WVTransform/WVTransform.m b/Matlab/WaveVortexModel/@WVTransform/WVTransform.m
index 7582ad36..a9f8ddcb 100644
--- a/Matlab/WaveVortexModel/@WVTransform/WVTransform.m
+++ b/Matlab/WaveVortexModel/@WVTransform/WVTransform.m
@@ -520,6 +520,7 @@
 
         function u_bar = transformFromSpatialDomainWithFourier(self,u)
             u_bar = fft(fft(u,self.Nx,1),self.Ny,2)/(self.Nx*self.Ny);
+            % u_bar = fft2(u)/(self.Nx*self.Ny);
             u_bar = reshape(u_bar(self.dftPrimaryIndex),[self.Nz self.Nkl]);
         end
 
@@ -527,6 +528,7 @@
             self.dftBuffer(self.dftPrimaryIndex) = u_bar;
             self.dftBuffer(self.dftConjugateIndex) = conj(u_bar(self.wvConjugateIndex));
             u = ifft(ifft(self.dftBuffer,self.Nx,1),self.Ny,2,'symmetric')*(self.Nx*self.Ny);
+            % u = ifft2(self.dftBuffer,'symmetric')*(self.Nx*self.Ny);
         end
 
         function u = transformToSpatialDomainWithFourierAtPosition(self,u_bar,x,y)
diff --git a/Matlab/WaveVortexModel/NonlinearFluxOperations/WVNonlinearFlux.m b/Matlab/WaveVortexModel/NonlinearFluxOperations/WVNonlinearFlux.m
index 7f485012..b5233cf4 100644
--- a/Matlab/WaveVortexModel/NonlinearFluxOperations/WVNonlinearFlux.m
+++ b/Matlab/WaveVortexModel/NonlinearFluxOperations/WVNonlinearFlux.m
@@ -143,6 +143,10 @@ function buildDampingOperator(self)
         end
         
         function varargout = spatialFlux(self,wvt,varargin)
+            % To count everything:
+            % 1. (u,v,w,eta) -> 4 transformToSpatialDomainWithFourier
+            % 2. (u_x,u_y,v_x,v_y,eta_x,eta_y) -> 3 diffX, 3 diffY
+            % 3. (Ap,Am,A0) -> 3 transformFomSpatialDomainWithFourier
             % a subclass can override this, and then modify the spatial
             % fluxes that get returned.
             phase = exp(wvt.iOmega*(wvt.t-wvt.t0));
diff --git a/Matlab/WaveVortexModel/UnitTests/ProfileableSpeedTest.m b/Matlab/WaveVortexModel/UnitTests/ProfileableSpeedTest.m
index 0ed9db68..47aaacb3 100644
--- a/Matlab/WaveVortexModel/UnitTests/ProfileableSpeedTest.m
+++ b/Matlab/WaveVortexModel/UnitTests/ProfileableSpeedTest.m
@@ -63,7 +63,7 @@
 [Fp,Fm,F0] = wvt.nonlinearFlux();
 
 tic
-for i=1:10
+for i=1:50
     wvt.t = i;
     [Fp,Fm,F0] = wvt.nonlinearFlux();
 end
@@ -78,7 +78,7 @@
 
 %%
 profile on
-for i=1:10
+for i=1:20
     wvt.t = i;
     [Fp,Fm,F0] = wvt.nonlinearFlux();
 end