RE: Megatech HouseFly Rotor Head (blade) problem
Get some spare bearings. The bearing being used at that location tends to wear out very fast. And check a screw that holds the maingear to the internal shaft(for the top blade) after every 5 flights. That screw becomes loose very easily and will cause slipping. I changed mine to 'hex' screw so it won't wear out as fast as using the phillis screw.