Yeah bow is 1 year old...I was shooting great up until a few days before the shoot, noticed my arrows weren't grouping right, thought it was me. At the R100...it was bad I thought it was me. Finally last 1/2 of course I noticed the serving on top string/cable is worn and frayed, almost squared on the sides...a little bit on bottom cam string serving as well but not like on top and bow making alot of vibration in hand...something is wrong. I think I'll send it out to the guy I sent my other bow to for new strings and tuning.