One of the Bowtech string silencers (part of the hush kit) broke and fell of my string on my Pro 40 DC the first week I owned it. I noticed it shot faster without it, but the string had a twang to it. I was thinking about trying some Sims stealths silencers, has anyone tried these on their Bowtechs? Do they work as good as factory silencers? What about speed, will I pick any speed up changing to the Sims?