Not completely. I had someone tell me it sounded like a straw effect where there was a pin hole in a hose or tube that was affecting it. I replaced all the hoses and that didn't fix it. I've continued playing with the pressures and pump speed and concentration levels, even changed all of the injectors. Found a bad solenoid valve or two that got replaced. Still didn't fix it.
It was still odd to me that it only affected one side of the two arms so I checked the solenoid valve that controls which arm is on. Everything looked good to me, but I swapped which valve controlled which arm. That caused the problem to switch from the driver side to the passenger side. So it seems to be a problem that can be fixed with a $2,000 part. Needless to say, that's not getting replaced anytime soon.
All of the other tweaking I did helped some, so it's better, but just not where I'd like it to be.