So I got my 980 from Manafont this week... I took it apart and did my usual tweaks. I shimmed the reflector to try to focus out a noticeable doughnut hole, with a very thin metal sheet between the reflector and pill. Threads on the pill are loose so I applied a layer of copper tape on the threads so the pill screws in with some resistance for a change.
So far, so good.
Then I did the same tweak I did with my Solarforces-soldered a flat copper rivet into the spring on the clicky for better contact and to avoid batteries from getting chewed up. Added GITD boot 'cause Foy's light looks so good with it.
I had tried different batteries... AW protected 2200mah delivered ~2.6A... I'm thinking, WTF? A check with an AW IMR delivered the 4.5A everyone talked about.
Well, with the switch tweak I couldn't wait to try 'er out. IMR goes in, screw tailcap down, switch on, and the dreaded flash and everything died. You know the world-just-ended feeling when that happens! Right after I spent hours getting it all "just right."
Seems my switch tweak is just enough to drive the emitter past the point of failure. The driver was fine and the emitter was killed instantly. Fortunately I had another light I swiped another XM-L out of so I changed it right then and there, using Arctic Alumina. NOTE: The original star only had paste under it, and not very much!! I definitely recommend reworking the pill to add more, better yet, use AA to glue it in.
Foy was right-it is an absolute bastard to get the pill and reflector just right so the O-ring doesn't get smashed. I tried working from the driver end, leaving the reflector in, but I still had to take the lens/reflector out to get it right because when I screwed the tube in, the pill twisted along with it when the tube made contact and mashed the O-ring anyway.
So here's my thoughts:
1) Don't do IMR!! I've been your guinea pig.
2) If you're mod-challenged or have a bad temper, leave well alone and don't mess with the reflector or O-ring.
3) I'm anal and have to get everything "just so." The light is very capable right out of the package without doing anything to it.
4) I'm not crazy about this driver, it obviously sends full battery current through the emitter when on high... all of my Solarforces with Shiningbeam drivers modded to 4.2A and regular use of IMR's work fine on high.
5) I still love this light... it's definitely the best looking light I have. I ordered another one 'cause I wanna try a spritz job on the reflector... and.. well.. I just want another!
What are your thoughts?
Rich