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Title: Just doesn't work the way you'd like
Review: Seemed like a good idea. Unfortunately it takes too much fiddling around to get it tight enough to work at all. You have to make sure it's lined up just right, and the thumb wheel doesn't allow you to tighten it that hard. The grippers have a little play in them which makes it worse. It's possible to use it, but not a lot of fun.
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