Who said bme is an unpopular engine. I have owned 3, and several others I know own or have owned bme engines. I only know of 2 people in my area that have DA, maybe it's just a regional thing in your area. They are every bit as competetive as any other light weight gasser, BME just doesnt throw motors out for free to the top flyers, DA is a great motor but for the vast majority of applications a 33-35% plane with a 100 in it is so overpowered it doesnt really matter which one it is IMO, it's all about what I bought must be best because I bought it