I currently use the IG YT Extreme MP, and have used the Extreme for about 5yrs (skipped the YT Extreme year, just kept the older Microgels). I have 3 frames, all strung the same (MSV Focus Hex 1.18/Gosen OGMS 17), but 2 of them have a "buzzing" sound I've never encountered in any of my (or other clients) frames before. I have the Yonex dampener, have checked the butt cap for looseness/cracks, checked if any knot tie-off was touching the frame (which may have fixed one of the 2). Has anyone else using the current IG YT Extreme encountered this, or has any possible lead into what it may be? Thanks in advance!