ive never had a problem with roostertails not spinning.....and ive caught hundreds of fish with them....i had one i used on smallies ALL summer long and would kill them on it....it still worked fine...and they were some good sized smallies...ive caught numerous trout on the same ones.....no reason for them to quit spinning unless the shaft is bend...which can be unbent with pliers probably.....i now make my own spinners and havent used them much....but the only thing that would stop them from spinning is bent shafts...and it shouldnt be THAT bent over a single fish! only time i can bend them is when im snagged and tug on it at an angle....try examining it and see if you cant find the problem....