I like mine. As already said by Bigbulls it does exactly what its supposed to do. It balances my Patriot nicely and at the shot it has a gentle slight forward roll. As for vibration it also does an excellent job of absorbing that also. I have mine mounted with the heavy end out but you can also mount it reversed. I have recently had a chance to try a few others while testing 06 bows and see no reason to switch.Its now on its second bow and will be going on my next one also.