Good choice. I have both and like the Saito .56 much better. The TT is OK but I began having problems with it from the get-go and TT would only talk to me about it if I would send the engine in. Horizon is much better with their support on the Saito engines in my experience - they want to keep you flying, not grounded, by keeping the engine in your plane if possible.

Just my two cents.

Tom