In reference to 30% nitro heli fuel for the Saito 100, this is ok. Morgan Cool Power Heli 30% nitro/ 22% synth oil. Check out Horizon Hobbies web site about the Saito engines, they even recommend it, as long as you have good oil %. Personally, I use 20/20, a buddy uses 30% in his Saito 91, and it runs very good!

This is a direct quote from Horizon's web site:
"Notice that we achieved significant increases in performance (300 to 400 rpm) when using 30% Cool Power helicopter fuel in the Saito but saw minimal increases in the O.S. with the high nitro fuel. Our staff commonly uses 30% heli fuel in Saito engines, as it not only gives better top-end performance but it runs smoother, gives a better transition, and runs cooler."

Hope this helps,
EdMan