I've got some new Pazzo levers coming for the rocket. Just wondering if there is anything tricky to swapping out the factory ones?

It's a very simple bolt on.
Make sure you use the grease that comes with the Pazzos and
follow the little instruction sheet that comes with them.

We've replaced one on my Wife's VFR twice now (snapped the ends off after 2 little "drops") and they seem very easy to install, and look like a top notch product. They guys at Pazzo in Langley also seem like decent dudes, they went out of their way to meet up with us in Richmond to deliver a brake lever while we were down their picking up my ZX14.

Installed them the other day. I'm happy with them. The next thing will be new grips to match :)