RE: What engine for my new addition?
I've got the OS-AX46, the Evo 46 and the TT 46 pro.
I think the TT 46 is the best value, the OS the best engine and the Evo is right up there as well. You would be happy with any of those.
If you are looking into a 45 cycle, then the Saito -72 would be a good choice.
-tychoc