wrong choice with the GT? Hell no you did not make a wrong choice it is the best P12 so far. It is thermally regulated, has all the bells and whistles the competition does not. The GT's beam is very very well done. Just get a Keeppower or Orbtronic 3500mah 10amp 18650 for it these are button top cells. My flat top GA works in the light out of pure luck. It comes with a tactical ring you can add so you can do cigar grip holds on the light. Took mine off as it did not pocket well with it on. So you will have it all. A cigar tube size light that rocks 1000 lumens at max if you want, SOS, Strobe,Beacon and voltage readout. Hope you have a good charger like an Xtar...