No, you're supposed to go back down to 3.55 OFW before you install another CFW. Installing Rebug or Habib over Rogero will work, but can lead to odd glitches.
If you have the latest version of Rogero, I don't suggest you upgrade, since Rogero's last build is the most stable of all builds, if you need to go on PSN, you can always spoof a higher firmware while staying on Rogero.