First, want to thank Vinh for the great customer service and very fast shipping. Couldn't believe mine already came yesterday.
Initial impressions :
Very glad I went with the XP-L HI 5000K. Nice tint and definitely not cool. Very bright too.
I couldn't detect any scratches on mine and the V54 engraving is very nicely done.
My higher drain cells won't be in until tomorrow so all I had to test was a protected Keeppower 3400mAh so I hope to get even more output, but in comparison to other lights it looks like I'm getting at least 1200 lumens.
Ran it on high for a couple 1 minute bursts and felt literally no heat on the head. I will try to run it longer when I get some time and can get outdoors. I got the extra copper heatsinking and think it's well worth it. Didn't have time to get out much past 100m, but plan on taking the rangefinder out and see how far I can get. Can't wait to see how it performs on the 10A cells. So far, couldn't be more pleased and need to track down a diffuser for it just to have. The length with a single 18650 is perfect and SO glad I didn't go with the M3XS-UT and its super long 2x18650 configuration.