Full throttle for most of the tank is fine, as long as you keep the engine very rich. I tend to back off on the throttle once in awhile to let the engine cool a little (running rich also keeps it from overheating and ruining the piston/liner fit).

If you buy an ABC or ABN engine at some point (like an OS FX, OS AX, Thunder Tiger PRO....), then the breakin procedure is different.

Have fun,
Dennis-