The Motor Falke TMG was an odd beast. Left hand on the stick and right hand on the throttle. Until... transitioning to right hand on the stick and left on spoilers. Yikes!
I had completely forgotten about the Motor Falke! I spent many hours in it, mostly instructing from the right seat. I don't remember the throttle being a particular issue - the Motor Falke was so underpowered, particularly at >4000' density altitudes, that we used two-positions - Full or Idle. You could have replaced it with a switch!