Sounds like it. I killed an original backdraft engine by running it too lean and had to get it pinched to get compression, but we have been tearing up a new backdraft on the track trying to get it to break, and the only thing we have had go wrong in 3-4 gallons of nitro has bee the front lower arms, but it had some BAD landings. It sucks that you had such a horrible first experience in RC and that kind of experience is what makes it hard for some to stick with the hobby. Unfortunately, it is a tinkerer's hobby; but no RC motor should loose compression after a week. I wish I could do something for you, but I did want to tell you not to loose face if you enjoy racing. There is so much fun to be had in this hobby; that I would hate to see anyone who took the first step miss out on the rest.