RE: CG Ultimate or GP Super Skybolt?
Saito will run fine on 15%(although-it loves 30% heli fuel!). It needs 20% lube, and prefers pure synthetic- not the synthetic/castor blend. With that said, I don't think the synthetic-castor blend will kill it off too soon.
Might I recommend Powrmaster.?.
I can't help you with the gear issue, sorry.