I fihured i would add this. I run a 12.25 X 3.75 APC prop on my M-.46, it slows the plane down for landings, isnt the fastest prop, but creates lots of torque, almost hang my superstar on the prop. i guess if you could find a prop like that it would work.

we had this prop on a TH .46, the engine on a really heavy Kadet LT-40. we ran a 11 X 6 on the engine, the plane wouldnt slow down enough to land, traded it around for the 12.25 X 3.75 and it would slow down and land perfect just another example.