You know, the more I think about voicing using Vise-Grips rather than pliers, the less I like it. I see the logic that once it's set up, the pressure applied to each hammer is theoretically the same. BUT, I think it would be all too easy to accidentally drop it while attached to the hammer felt, or catch it on a sleeve, or in some other way do something that might almost rip the felt off the hammer.(or the hammer head off the shank) because the Grip is gripping it! Plus, the hammers may not all require the same pressure anyway. It sounds safer and maybe speedier to me to proceed cautiously with a not-too-huge pair of pliers. Best, David.
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