For the folks that use gassers, can you recommend the "O.S" of gas engines? I'm "thinking" about looking at a 30-40cc gasser for a 3D model. I need light, reliable, and powerful. I DO NOT want to spend days in the pits fighting to get the thing started and tuned. I was flying two weekends ago and a guy came to the field with a new gasser and spent the better part of 3 hours just trying to get the thing started. I left after 4hrs and he still wasn't up in the air. This is what I want to avoid. I'll shell out the extra bucks if it starts and tunes as easily as an O.S. two stroke. I know OS is coming out with a 50cc in December, but that's more engine than I need.

I know nothing about gassers. So what do you think? DLE? Zenoah?