Sent my contender back monday to TC and got it back yesterday.They replaced the hammer with a the selector style.The hammer still will not stay cocked.They said they test fired it which Im sure they did.After about 4 dry fires when I first opened it then wouldnt hold at all.Its like the sear is not holding it .Could a heavier hammer spring that they put in be the culprit? With the hammer even at safe (first click) it doesnt always catch there either.If on occasion I can can get it to hold back you can breathe on it and the hammer will fall.Any ideas? This is getting old.Im out $40.00 bucks for overniting it to them already!