i can't speak for FB but GJC has taken aircraft from MFG X and did all the appropriate mods that have been found to be problem areas by the regular Joe's out there flying brand X to start with, Anton at SM does extensive testing himself putting things through their paces before rushing it to production, boomerangs are built in China but Alan and Ali have put the design through the ringer before it's brought to market, FEJ spends more time making excuses then doing R&D and push out 10+ jets in less then a year. my personal opinion of FEJ is they are pure junk and knowing such there's no way I'd ever fly one in the manner that the F-15 in that thread was flown and expect anything less then what the guy got, i was shocked at the comments and PMs i got asking how i could promote FEJ like that.........they'd be the last people I'd promote but i gotta call a spade a spade when i see one!