Nitroburn1, I think if you ask 10 different people how to break in a boat engine, you will get 10 different answers....BUT, I pretty much do what you did with the Vegas.

I start at about 3 turns out on the high speed needle. For the first tank, I take a couple laps, then let it cool, then take a couple laps, then let it cool, then run the rest of the tank out. I leave the needle where it is for the 2nd tank...then starting on the third tank I start to lean it up an eigth of a turn per tank until it runs right. At about 7 tanks, your boat should be running pretty good.

Sean