also spin check your arrows after you put your broadheads on to see if your broad heads are straight to the arrow. I mad a bench top spinner from a piece of aluminum. 24 x 1 1/2, 1/8 in thick. measure back 2 inches from both ends, and bend to 90 degrees. notch out a v and your done. set arrow on and spin with broadhead pointing to a fixed spot. if it wobbles. thats your problem. you'll need to change out the broadhead or realign the insert. hope this helps.