I have a different problem with the new Naga Pro and I hope that this bouncing problem is solved with the optical switches.
Now the problem. I use the 12 button side. Button 2 and 3 don't bounce when cclicked but more like wackelcklick. You just have to press the keys harder than cclick to get it to work normally.
It's not a gamechanger but a muscle memory thing that you get used to. The same problem is reported in various forums, by the way. It's a shame that Razer still hasn't achieved perfect quality.
I'm still wavering between sending it in or ignoring it, because it's not clear whether a replacement also has the same problem or not. In the end, I can live with it, even if it's not nice, but it does tarnish the whole thing.