Love my DLE-55! Pulls my 15.75lb 89" 30% Edge unlimited vertical at just over 1/2 throttle! I had 2 deadsticks on tanks 6 & 7 but it was due to my LSN being way too rich. At my altitude of 3200ft asl, I had to lean my LSN to under .9 turns out. My timing was also at nearly 40* which I retarded before even flying the thing. Great engine!