Poorkid,
I have 2 OS LAs and love them.
Yes, you will get more power from a bearinged engine - do you need it?
One of our super flyers prefers the bushinged engine for his 3D flying.
Since he flys vertical much of the time he claims the bushing is able to
withstand the lack of oiling for longer periods of time.
Get what you can afford.
KW_Counter