RE: What RPM???
We had our first EF1 race sat 10 flyers Everybody checking RPM's and comparing reading Everybody was in the 14,000 to 14500 range Probably different battery and motor config Last year we had a guy complaining about his low RPM readings on his Q500 motor He was at least 1000 under everyone Guess what was wrong ? His expensive custom made TACH was BAD