My experience with A settings is that I get too deep on my onside turn which is my main problem anyway behind any boat, any driver, any speed control. C settings (haven't tried C3, though) feel good, but can result in me being narrow due to lack of gas behind the boat. This past weekend I went with B1 behind a 200 and it was by far the best feeling boat/setting combo I've experienced in the past 3 years. I haven't been that wide, that early, had that good of angle and acceleration out of the turn in I don't know how long. Of course, I still managed to f-up my 35s, but that is a function of going too hard on my gate and I'm in the process of fixing that. I practice behind an '09 196 with ZO that feels OK with B1, but it is definitely harder than the 200/B1 combo (I wonder what the prop differences between the two boats are). ZO settings are so personal, that you just have to figure out which one feels best for your style/technique/size/speed/line length/ski/water temp/shorts. I know guys that swear by A3, guys that swear by C2, guys that swear by B1. I now swear by B1, but then my shorts are like a camo with a black grid overlay pattern. So, you know....