A hybrid -- assembled out of files from various operating systems -- is not necessarily better than an unmodified OS. I'm running Verizon .713 and see no reason to change, although I've used leaks and hybrids in the past.
Here's my checklist for an OS upgrade/downgrade/reinstallation.
HELP GUIDE: Upgrade/Downgrade, Backing up, BRICKED STORM!! Your COMPLETE GUIDE
This is the quickie version:
1) Backup phone with Desktop Manager.
2) Backup apps with BBSAK.
3) Download the appropriate OS for your phone.
4) Remove unwanted garbage with Shrink-A-OS.
5) Wipe phone with BBSAK.
6) Reinstall OS & Apps with BBSAK, then restore data with Desktop Manager.
Before you start this project, make sure you download everything you need.
a) BlackBerry Desktop Manager
b) Operating System
c) BBSAK
Click Here
d) Shrink-A-OS
Clicky.