I agree, my Dren did the same thing and it had a bad cam bearing!My Reezen 7 bottom cam made the same sound, so me and bow pay a visit to my local Mathew's dealer. QCC sanded, still making the pop sound so after closer inspection, the cam had a bad bearing. Dealer called Mathews and within a week, there's a new bottom cam on my Reezen and no more popping noise. I love my Reezen, great bow, don't give up on it just yet. Hope this helps.