Quick PSA regarding modding the P0: Do not try to reflow the LED in a Preon P0 if you have a cold.
I decided while I was at home sick from uni/work, I'd swap my P0's emitter to a HiCRI XPG. Everything was going well, I had the old LED out, and the new LED on the pads, the solder was just on the verge of flowing. I sneezed. One of those horrible violent sneak-up-on-you kind of sneezes that can only happen when you're sick. I tore the dome off the LED with my tweezers, ripped two chips off the bottom of the board with my soldering iron, and lost one of the resistors that sits next to the LED. The board is pretty much a write off.
If anyone has a P0 board that they don't want because they are using a dqg board, PM me. I'll make sure next time I'm soldering microcircuits, I don't have a cold...
Cheers,
Alex