Stabilizers and what works from bow to bow and shooter to shooter will vary wildly.

On a target rig, the stabilizer is not really indended to remove vibration as it does on a hunting rig but to provide for balance of the bow and......stabilization. That being said, the only way to really know what will work for you is to spend some time shooting both of them and pick the one that feels the best.

I believe that both of the stabs you mentioned are relatively light so either should work for you.
That being said, my wife shoots a 26" Fat Free, and it is a well made stab. It is quite light, however you can always add weights to it if you want.

If you get more into the target scene, you would probably be well advised to make a pilgrimage to either one of the larger archery shoots or a larger archery store and actually try out some of the various stabilizer models to determine if there is one out there that works better for your shooting style.

What I eventually found out, at least for my shooting was that I prefer a light, but long stabilizer (34"). Shorter stabs (30" and shorter) just don't give me the feel that I am looking for, but that is just me. Your mileage may vary.