the feedneck will be fine and if it does come out, it shouldn't though cuz they are locktited(sp) in there pretty well then just use some locktite to put it back on.
also i think i know what the dude who told u about a timmy snapping in half is talking about.
there is a video that was all over pbn about a month or so ago of some newb trying to be all AGG and **** and he ran like 10ft jumped up like 3 or 4ft and landed directly on his gun so the frame came off of the body or sumtin like that. so yeah unless ur a total newb like that then u shouldnt have anything to worry about.
they just changed the word to Gogged once u post ur thread.