Luke, I have had two of the nasty little brutes. The MDS .38 that I had, started & ran well enough -- it was even close to the power of my TT 40 Pro at high rpms, but it broke its crankshaft quite spectacularly -- resulting in a model being lost in the bush (& not found again).

My MDS 78 is just plain crappy. It starts & runs well on the ground, but seldom completes a flight without flaming out --- it has wrecked several models. Additionally, it is heavy & it only makes mediocre power for its displacement -- not much better than my LEO 61.