I have a DL50 that is a beast. I have it well broke in and it is a powerhouse. I fly also with DA and 3W guys and they while not praising the DL at least say how good it runs. I don't get my big plane out every weekend, and sometimes go a month or 2 before I get to fly her. BUT IT IS THE SAME EVERYTIME. Choke flip 3-4 times until it pops unchoke and flip 3-4 times until it starts!!!!! Sweet engine at great price.