RE: what to do with saito 2.20?
My vote is for the #1 Extreme Flight Extra 300 or #2 H9 Extra 260.
I owned a H9 Extra 260 with a DA50 and it came out at 14lbs even so a Saito 220 should come in at 13lbs or less.
I,ve had both the Aeroworks Extra 260/300 35cc versions they do not balance easily with the Saito 220.
I know I tried and decided to sell the engine and get a DA50 instead.
Dave