RE: Tecumseh TC200 / TC300
No experience with that engine for me. I did have a Tecumseh 48cc two stroke engine off a mini rototiller that I was thinking about converting. I imagine for that application it was designed for a lot of torque and probably would have been best for largish props. However, I ended up needing the rototiller so I put the engine back on the machine and never converted it. It runs very well on the rototiller.
AV8TOR