Poll closed, but figured I'd give Dale a shout-out. Holeshot stage 1 with advancer, followed instructions to a T. Install took me about 6 hours taking my time, no issues at all. I have been into quite a few sets of carbs though.
During the install, located a pinched #4 diaphragm, which probably caused the soft top end I was trying to fix.
I've owned 11 bikes, including some very fast bikes (170hp +), and I will say that the Holeshot stage 1 kit really woke my bandit up. I'm guessing that I was down power from stock, but the bike now runs like an animal. Plenty of power for street riding. I also have a Yosh can, fully packed with insulation, and run the quiet core insert.
The Holeshot stage 1 is a good product. Jetting spot on the first try, and big gains. Stock drivability. The rare modification that I don't wonder if it actually does anything.