Funny you should ask this question. I had the same thoughts with my Poulan 46cc, and too couldn't decide which Stinger would be better - especially since the kit prices are very close.

Well, I finally quit thinking about it and ordered a PW Extra. IMHO, the two large Stinger ARF versions are over-priced compared to the precision aerobat ARFs available nowadays. The GP or WM 1/4 Extra are better fit for your BME 44. Once you get over the butterflies, they can be just as much a sunday driver as the stingers.

You're absolutely right about the nervousness being all in your head. Since I fly Mode 3 and could never find anybody else to test fly my new planes, I've had to learn to just say "what da heck" and go for it.