I believe that right around 200 deg is optimal. It sounds like you may be a little lean on the break in runs. Try starting with the high needle at about 1 1/2 turns out and the low needle at around 1 turn out. Peak your high needle rpm and back off 1/4 turn from peak. Set your low needle so it is rich enough to shut down the engine with the radio throttle stick. If it doesn't want to shut down, you're too lean on the low end