Hey Frog...

I have been flying Saito's for years... What "Constant Tweaking" are you refering to?

Have you seen me tweak my Saito 180? Tune it first flight of the day to adjust for conditions and fly. Once the engines are set up, they run great.

Go for the Saito 72 or even 91 based on what the manual calls for... If you want a more scale plane, use the 72.