HuntingBry: I will agree that I am in the minority when it comes to the STS. I tried it on 2 bows. The Tundra it did squelch vibes enough to tell, but without it the vibes weren't really all that bad. On the McPherson Edge, it actually made the bow louder. Vibes were really not that much different. I guess if you can get them in the "sweet spot, it might be better. Today's bows really are nice compared to what we had a few years ago. I also agree that if vibration is the main problem with this Allegiance, then a supressor would get rid of that. My concern would be..."Why is a bow that should be quiet and pretty much vibe free having such a vibration problem?" Could be something that the shooter should know about that would be masked by the STS. I also found a major difference with my Liberty could be felt when I shortened the string and cables 1" each. Added 5# and vibration was cut by about 70%.