What nobody mentioned yet: lenght.
Find a rod just long enough to rest your bow on comfortably between shots.
Otherwise lenght is not critical, it's the combo of the lenght/endweight that does the job. Shorter rod, more endweight, longer rod less endweight.
So unless you are very picky about total bow weight, I would choose a lenght as said before, and then add/remove endweight until you get a good balance.
I do it like this: Put on the stab, shoot, and let someone else observe the end of the stab. if it kicks high with the shot, add some weight, otherwise take some weight off, until it stays level. Works for my bow.. Anyway, don't just screw something on, try to experiment a bit and see what works for you.
Finally just a remark: Stabs are there to stabelize your bow and get the center of gravity right, that is what you need to go for.
Damping vibrations is just an extra you (might) get, although when I read other forums it sometimes seems that is the only thing that matters.
And one more advise: get a quick disconnect too: it saves the threading in your riser, and makes setting up your bow so much easier.
Peter