Not to sound like an jerk but as someone going for your Com checkride you should know PTS for maneuvers and how to do them yourself, and not just go by what some instructor says... It really sucks that your instructor didn't teach you properly, that is not your fault by any means, but this could have been figured out in the oral portion of the exam if the examiner asked you how to preform the maneuvers and you told him the 65% power thing w/ chandelles.

I'm sure you'll do fine with the retest. like the previous post the Airplane flying handbook is great and describes everything you'll need to know for any maneuver you'll need to know about.