Thanks Razor,

I was concerned with the 9100 and wondered if I should drop prop size back to a 14x4W in order to get the RPMs closer to 10,000. I believe I'll stay with the 15X4W for a while to see if the engine speed increases with time. Like I said, I've flown 2 stroke engines for about three years so I'm used to the higher RPMs albeit smaller props. My history is Norvil 25; OS 40; Several Magnum 46 XLS ; and a Magnum 52XLS. I tend to lean toward the Magnums as they perform great considering their price. Considering what I've heard and seen, I must say this Saito seems like a really good engine so I may convert a HOTS that the 52 is on over to another FA82a. Thanks to all for your imput.