RE: DA, BME, ZDZ 50??
Wowbanggar! I am a DA guy. I have 2 DA50s they are hands down the best petrol engine I have owne. I have a BME44 have had a few other too. The support is number 1. My DA50s have more power than any 50 at my field. Hands down. I got one on a KS 1060 pipe pulling my comp-arf 2.3 extra 330 and it has unlimited vertical, albiet scale performance at 19lbs 6 oz. The DA engines are in another class than the others. If I had to try another brand I might try 3W. IME there is no better designed and manufactured engine on the market. IME!
Joe