Update:
I dropped another 20 points off the mains. It isn't perfect, but it's ALOT better. It'll pull almost full RPM. It'll bog off the line, then pull the skis, up til about 7,800 RPM, then it'll slowly gain RPM up to around 8100. Which is still a little low, but at least I know I'm on the right track. I'm going to drop the needle one clip, and maybe the main another 10 points. I'm a little confused why others are running 350 mains, and I'm all the way down to 310's???