Vibration Dampener?

I wanted to know if the small dampeners, long dampeners, or the dampeners that are attached to the racquet like the Babolat Racquet Vibration system had a difference?

well, long ones or snakes work better than short ones.
Best of all in my opinion though is an elastic band. I always found my shocka absorbers fell off and got lost. so i tied a lacky on. around a main and cross string. It didn't cost me anything, it didn't fall off, and it absorbed shock better than the others. you don't need to tie a special knot, just make it up.