Both are great releases. The perfex has a ton of modularity and options. I really liked being able to change the thumb barrel length, position, and thickness. In my experience they are equally as crisp and can both be set to zero travel with good tension adjustment. I prefer the long neck version of the perfex for the ability to hang it from the D-loop and not worry about it coming off. To help you answer your question though, is it worth it? Releases are such a personal preference that it's hard to tell for someone else. I say find a used one and try it, if it doesn't work for you sell it, they retain they're value fairly well.
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