Luminarium, I have actually used WW XP-G2 in the 7 range, copper mounted, running 3A in aspheric. I also have a de-domed 7C XM-L, lol. Probably ended up with something that would have been a "9" tint.. :D I have de-domed 3C too.. :p
Saying that de-doming a CW emitter makes nice warm tint is far from the truth. You end up in the upper NW range, (if not in the lower CW range) and you often get a yellow-greenish hue with lower CRI than a proper NW. Far from nice warm colors..
I prefer to start with a 1A when de-doming. Does not end up that yellow-greenish.
A cool tint is generally better for spotting things at a range IMO, which is the reason why I do not have any throwers with WW tint anymore..
In multi-emitter lights, the tint of de-domed emitter can certainly be improved though. Improving the color tone of de-domed emitters.
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Nightbird95.
If you have not checked this thread lately.
I had around 3,5A+ to XM-Ls
Swapped to XP-G2s. close to 3 average.
De-domed two of the XP-G2s, Close to 2,6A average.
Normally, I would not expect up towards 0,4A lower current to each emitter because of de-doming, but with that driver and those de-domed XP-G2s, that was the result in that light.
Generally, its not easy to push several XP-G2s far beyond 3A with typical drivers that are available.
Here is a beamshots comparing XP-G2s vs XM-L2s in a SRK (mouse over changes picture). I have not taken pictures of the de-domed combinations (yet).
As you can see, the XP-G2s does throw a bit furter, but have less output. When that is said. The XP-G2s are then driven fairly close to the max, the XM-L2s are not. And the XM-L2s in my case were only T4. If I had used top bin, and higher current, the XM-Ls2 would have won in terms of throw too.
Same thing should pretty much apply for the BTU too. At similar current the XP-G2s will throw further than the XM-L2s. But since you can push the XM-L2s much harder, then throw is fairly similar. But with the XM-L2s you get much more light output.
The main "advantage" with running XP-G2s is that the light could run a bit cooler (due to lower amps) and still have good throw. You will also get less spill, which can help the visual impression of the beam.
In the BTU, I would stick to the XM-L2s. Its probably better in terms of throw (although, I can not say that 100% for sure).