Like Lefty says, Jimbows will let you try before buy.
A lot of people run them for various reasons; balance, vibration reduction, etc.
I have a Hoyt (Fuse?) Blade 8" that has a quick detach on it (
Blade Stabilizer). It has some of the above mentioned features in that it has the dampening rubber fingers and weighted front end connected by a rubber block, but the most interesting feature I find is that it's flat. When mounted, it lies flat and horizontal, allowing for hardly any effect from wind (that I can notice anyway).
One of the biggest things it did for me was so settle down the pin oscillations that without the stabilizer, seemed to happen to my pins. At draw without the stab, the pins seem to vibrate more than when the stab is mounted.
J.