I think the TR Static and the Sims Modular (Similar in function) are the very best out there right now. Unfortunately they are hard to find around these parts. I know the 2013 Sims Mod made a huge difference in the feel of my Martin Alien. And I've had a Static on the Motive 7 with equal results. These extreme pre-stressed limbs, low stretch cables and high performance cams on todays bows are amazingly quiet and shock free. But nearly all of them I have played with rated at over 330 fps seem to have some lasting high harmonic hum/vibration at the shot. These two vibration dampening stabilizers really knock that hum down well. Even when shooting without a rubber or plastic grip. I just don't get that kind of result from big heavy dumbbells.