Thanks for the nice review!
Reminds me that I have a Roche F6 that I need to mod sometime into something with a lot of lumens. This light is a bit on the large and heavy side, but that makes it suitable for more power than say an S2+.
Btw, there’s a great thread on modding the Roche F6, that should work for this light too: Roche F6 hacking