A late thanks to Selfbuilt for the great review which is the reason I ordered Maelstrom X10!
Today I received it and included two batteries in the order. The 4Sevens SmartCharger I already have since earlier for charging 14500 batteries to my Xeno E03 lights.
Short personal impression and opinions: A great idéa to use 26650 battery, which makes it possible to get a good combination of high brightness and decent runtime. Only one battery to change is practical and simple. The knurling is great and the light feels safe in the hand.
This is a pretty good thrower, between Fenix TK30 and TK50 when it comes to hotspot intensity. The hotspot is very even illuminated like the hotspot of TK50(no visible darker part), but massive with the size of the hotspot of TK30, just sharper edge. The hotspot intensity is not very much lower than TK50 but with approximately 4 times the area. This makes the hotspot brightly shining up a pretty large area at long distance!
At the same time also the spill is significantly brighter than the spill of TK30, just slightly narrower.
At the low mode the hotspot seems to be greenish/yellowish(I have hard to specify it exactly) with a yellow corona and a bluish spill. At high mode, however, the hotspot to my eyes seems to be vanilla white, corona is yellow and the spill is clearly purple. The corona and the spill tints actually are pretty similar as my Jetbeam PA40 neutral.
Consequently, the beam of X10 is not a favorite for white wall hunters. I first was a bit doubtful about the hotspot tint at low mode but I don't think it's a big problem for me: I didn't buy X10 for using at low mode and when I want a nice tint I just bring with me some of the lights with a Malkoff Warm dropin.
The wide and bright spill combined with the powerful hotspot makes X10 useful for as well short and long distance.
Only serious drawback I find with this light is the tailcap. It's a tough job(with both hands) to turn on and off the light, and for momentary function I find it's difficult to hold it on without making it flickering(similar with Surefire 6P).
Apart from these issues I really like X10! It's the brightest flashlight I have ever had until this moment and I am sure I will enjoy it a lot!