Thanks for all the input, I have all the bodies mentioned above
and I might have to run my light for more than 15 minutes even though I always have a second on me at work but this is usually a L4 for close range flood stuff.
I really like the nitrolon body of the G2Z but am nowhere near as keen on the G2 body.
I will probably just stick with it in my C2 but one of the things I am trying to get round is the fact that the bezel only needs to be unscrewed a fraction and the light stops working. I had this happen while in a V70 holster on my duty belt the other day and I dont know how?