So as I start ordering the electronics for my 2nd saber (finally), and looking to upgrade my current saber, I've seen a few people post about the new Cree XPE-2 LEDs. In my current saber I have a tri-cree BBW with the XPEs (Blue wired in series run at 1200), so how much of a difference in brightness are the new XPE-2s? Just curious if it is a noticeable difference in person and with the upgrade. Thoughts? Input?