I also have the electrifly ESC....and honestly I hate it. Despite having attempted about 30 times to program it via the instructions, although it gives me the confirmation tones. I cannot get it to accept the programming for a 2cell lipo. The voltage cutoff kicks in before I can fly it because it keeps looking for 3 cell voltages. Perhaps I have a defective unit, but these types of issues have been posted on the forums before, which makes me question the quality of the BL series ESC's

It works fine on a 3cell lipo though.
The Rimfire seems to be a fine motor though. Keep a close eye on that collet though. If the allen screw comes loose, it will come apart in flight. I mean Outrunner housing with magnets, shaft, and prop attached going one direction, and windings and base still attached to airplane.

A few others here, and myself included also had problems with Electrifly lipo's getting really hot or overheating. The discharge rates just arent up to par despite what the label says. Ive gotten mixed responses to this. Some people like them, and some people dont....again its possible that we just got a bad batch so take it with a grain of salt.

Ive not been impressed so far with anything that came out of Electrifly with the exception of the Rimfire motor, its a good motor for the price.

The only thing I can suggest is changing the ESC out to another ESC and see if that corrects the problem. It sounds to me like you are experiencing the same false programming issues that Ive had. A quick ESC change will quickly let you know if the ESC is the problem.