a couple minor issues

For the most part, boat is running pretty darn good. There a just a couple little annoying issues I was hoping to figure out...

1.) Perfect pass is not holding true. Went out this last weekend and the perfect pass didn't seem to hold very well. I had it set to 21.5 I believe and It was dropping as low as 19.3 to as high as 22.5. I usually have a little play, but that range was really affecting the consistency of the wake. I notice it holds better when there is less weight in the boat (ie the time before last we just had 3 ppl and all gg ballast filled, but pp stayed consistent, whereas this time time we had all GG filled and 6 ppl in the boat and it fluxed). should I empty ballast, when I have more ppl in the boat?

2.) Got my Krypt HLCD setup in with new EQ and built a new amp rack. system sounded great for about the first 3 hours, then it started "popping" though the speakers. It sounded like a CD was skipping, the only problem was that it continued to make that sound when Ipod was disconnected and no CD was actually playing. I gave it a rest for awhile and it worked again for a short bit, but did it again. I want to blame it on hot amps or something, but I thought over heated amps would just shut down... any ideas?