RE: First-timer question on my experiences breaking in engine
"Beast",
Even if no damage was done to your engine this time, do not run it without a prop again. Do like everyone in this thread has been telling you and go get some help from someone at your local club or local hobby shop. If you don't know what you are doing, and you don't, you can get hurt or hurt someone else. GET SOME HELP!!!
Good luck,
Regards,
doubledee