I did some measurements on the modded flashlight today, mainly throw measurements 
, all measurements were done 30 seconds after switch-on on a fully charged battery, unless stated otherwise. I measured the throw at 5 meter and calculated it back to 1 meter, giving klux@1meter (or kcd if you like). I used my Mobilux A luxmeter which should be almost as accurate as you can get for a portable luxmeter.
On a Sony30A battery I got a tail-current (bypassing the switch) of 5.29A after 30 seconds, throw (using the complete light, with switch) was 235 klux@1meter.
On a Panasonic NCR18650PF I got a tail current of 4.61A after 30 seconds, throw was 225 klux@1meter
I measured the throw over time on the Sony30A to see how the output changes, giving an idea of warming-up effects/battery-drain effects:
0sec:253kcd - 10sec:245kcd - 20sec:240kcd - 30sec:235kcd - 1min:226kcd - 2min:219kcd - 5min:208kcd
The output decreases steadily, quite as expected for a direct driven led at high current, I think that I see no dramatic temperature effects, mainly the drainage of the battery. The light was nice 'n hot after five minutes though.
The light output on a NCR18650PF after 30 seconds I measured at 470 lumen zoomed out, 350 lumen zoomed in.
One quick beamshot zoomed-in of the square I live in (to not distress my neighbours too much). I corrected the illuminiation of the picture so that it is an accurate representation of what I see in real. The roof edge in the beam is at 85 meter:
This performance is a little bit under what I had calculated beforehand (I was warned by 18sixfifty already 
), I hoped for just a bit more, like 250kcd throw instead of 235. A similar mod on the Jax Z1 (with dedomed XP-G2 S2 at ~5A) was done by Kenjii, he measured about the same throw as this mod.
I like it the way it is now, a compact thrower with some wow to it. This mod is all about throw, but I must mention that the tint is a nice neutral, and the zoomed-out beam is beautiful, a very even illumination (less artifacts and also wider than the UF-T20) with a sharp edge.
I consider the mod finished and succesfull 
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and now wait for my UF-1405 to arrive. I think of a similar mod with shortened battery tube (for 1x26650 battery), but with a XM-L2 dedomed.
