I have a DLE 55 and a DA 85 that I'm flying the heck out of. Both engines run great and have given me great service. My only complaint is the DLE bites. I'm never been bitten by my DA. I don't know if I'm right but the DA ignition retards the timing until the engine comes up to speed. I don't thing the DLE does. This makes for an engine that if you are not careful will kick back. The answer is simple. I use a Chicken stick on the DLE and a heave glove on the DA. Would not sell one to buy the other.