Morton I don't know about the TKM, but I have a PCR 135 that's shelved because of time trying to track pistons down or modifying other pistons to fit. Don't know the HP of mine but it is very stout. Thought of having sudam liner put in mine and using available sudam pistons.
I've had both. My TKM 135 rotary would outrun my K-30 rotary. But my K-35 reed would outrun my TKM 135 reed. And they'd both leave my DAPs in the dust. But this was on enduro/road racing and not dirt bullrings.