I just bought a used 2003 Patriot Dually. I just replaced the modules today (PD3 28" down to PD5 26"DL) so have only taken a few shots with it indoors so far. My problem is when drawing it, when it hits the wall it makes a loud clunking sound that would definitely spook game. It has original stings and cables but I do have a quality set on order ( J.A.M. from Gibblet). It is cranked down to 63 lbs (50-60 limbs) and the ATA and brace height are to factory spec. Anybody have any theories?