Looks like you been busy
This is what I did back in 2016, but it's been on my long list for more mod upgrading to a better driver, better LED. As you can see, I wired up the switch LED as well, running an early version of Narsil.
I've been using an old TrustFire 32650 6000 mAh in mine with the protection circuit removed - works great, low resistance after removing the PC.
Lol dang, I was gonna make a direct fit driver but I figured no one else would ever possible use one. I was just gonna size the SP33 driver up and adjust the switch board location, probably would of been less physical work than this wayā¦
Did you put then spring back and ground yours the way it came or delete the ground wire / screw / little spring? I deleted all that crap on mine, Idk why it was there in the first place, this light doesnāt have ground path issues or anything (itās actually surprisingly good considering the drop-in pill design).
Funny story, I forgot the factory board wasnāt DTP so when I first fired it up the factory XM-L2 (which I kept cause I really liked the tint in ended up after gas dedoming) it went blue instantly, talk about an interesting smell (didnāt realize an LED going blue made a smell lol). Took it back apart and put it back together with an XP-L HI for now, Iām thinking itās gonna get a NW HCRI SST-20 before itās done. Also having some intermediate aux LED issue, like you I picked a random pad to put a resistor on and air wired it, probably got a bad joint or something so it will need to coma back apart sometime before I can really call it done.
Hereās how I did my connections
Edit: oh man, post # 3535!
Ohhh, pretty sure I kept the spring, screw, etc. -- pretty sure, been a while, March 2016 I did the mod. Kind of messy light to mod for sure but the 32650, if you got one, is what makes it unique, but also makes a nice compact 26650 light.
i modded the battery springs to one of these a couple nights ago
re-vampted the springs, simply place a battery the wrong way round to get nearly 1.2 lumās in the glow from the springs, also added a hum to the stepless ramp mode. missed the vidio sorry guys.
ermmmmā¦ dohhhhh!
Happens to the best of us 
Not that I am 
Same happened to me 2 weeks ago. Tried to check the tailswitch light of one of my lights with an 18650.
Had the switch been open, the light would go on. But the switch was closed and I melted the spring(s).
ahhh yes but getting the added whineeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee lol
Hmm, you guys make me think about modding my old BLF SD10. It still is a nice clean design. And thereās Soshine 32650 batteries around now (this link has a feedback that measures that in a Opus charger) that measure 7000mAh and probably perform better than the old Trustfires.
I finally received a couple of Convoy S2+ 18350 tubes that I ordered. It turns them into an even more compact EDC and my Luxeon V triple still draws 14 amps from the very impressive Keeppower 18350, making it ridiculously bright for its size.
I like the bolt action.
i like the shiney brass
Like it. I want to know how he did it. That must be so small. I smell an alien here or alien technology. 
Filed down a #14 nickel-plated brass finishing washer tonight. Thinking of attaching it to my clear E07.
I donāt think the E07 really needs a washer to prevent accidental activation as the light is big enough it doesnāt move around in the pocket much and the button is small and flush. However, this washer would provide a little more protection and would make it easier to find the button by feel when reaching into a pocket.
The washer slightly overhangs the flat part of the light around the button. If I end up gluing it on Iāll try to fill up the gap so the lower edge canāt get caught on something.
Here is what it looks like not glued on yet:
Washers seem to be the thing for anti-pocket burn lately. That one looks like a nice one firelight 
nice work Firelight.
how did you take out the switch ring?
was it press fit?
i was thinking of a 3D printed lens cover and button cover in one (dont have any workshop machinery here)
That would be interesting. Not sure if I've seen that for a flashlight before? Are you think'n made from soft plastic that has a flexible all one piece connection between the 2 caps?
pritty much, even PLA if push comes to a shove, end of the day thereās plenty of different velcro straps about. havent fired up the mind Blender3D yet. (costs a bit for the rubberised filoments, and then theres setting up the machine).
tbh iām surprised the torch manufactures donāt do silicon injection moulded versions, is a very short design step.
I guess I've seen this before for binoculars. I got one pair with separate cup protectors and it's a nuisance, but if they were connected, and better yet, connected to the neck strap, it works well. For a flashlight, not sure it would work well connected to a lanyard maybe...