Take this XM-L2 chart, and remove a certain amount for reflector loss, and AR coated lens loss.
I would not de-dome the emitter that came with my light. It was said to be a 1A, but it looked like more like a 1C to me. I can barely rate de-domed 1A as acceptable. I hate tints that reminds me of green-yellowish puke.. I wont be de-doming anything that looks to be above the BBL (see line on ansi chart) unless I can do some tint mixing to fix it. Emitters in other L4s might be better suited... Its also a matter of taste...
