I have to agree with Kris^ and AJF--2 on this one. I just can't justify spending the extra $100 on the DA when my Brison 3.2 starts right up, NEVER skips a beat and makes great power. I have a BME 50 that I have yet to run but the others at my field run reliably and are very strong. I'm sure the DA is a fine engine, but so are the Brison and BME.