I do love the Volt SS, having now used it quite a bit as my Skyline sits in the drawer. It's beefy, and very solid. I have to say however, I'm not a big fan of the Zing SS. I recently picked up an orange Zing, and the smooth operation with the angled thumb studs and flipper coupled with the relatively robust detent made it a great opener. The assisted open seems a bit superfluous, unnecessary. That's just me though, preferring a manual.