I played for a long time with the small damps in the middle mains, which I always found to make the string bed feel very dead. Lately I've been playing with this and the Wilson shock shield (worm type) that take out that annoying ping sound but leave a bit more feel.
I like it. Doesn't come flying off the racket like other types.
Easy to install, unobtrusive, and very effective in dampening vibration of off center hits.
Great Product, Easy to install, perfect snug fit snaps right in place. Seams to help my daughter alot.