If you want to stock up on Saito fuel the cheepest place is at a Pro Bro event. Tom, Bryan, Bill, or myself might be able to hook you up when the next local one comes around. For the 2 stroke I'de run what ever you feel like. I like 20% myself. Some swear by Byron as well. I've ran the HobbyTown stuff in both 2 and 4 strokers. The two strokes do fine. I think my Saito 100 would see a benefit from better fuel though.