If you get chance at some point, could you post pics of exactly where the thermal grease should be applied? And what kind of thermal grease can be used? Any advice is appreciated as I've done nothing to my k-106 and I would like to protect it better.
Lucky lucky you! I had my cut-up AK16 that still needed to undergo the treatment...... So i took some pictures for you on the process!
Its no rocket science but i can give you a few tips on how to prevent a mess:
Needed:
-Akoray light
-Tissue or alike for cleaning
-Toothpicks
-Tools to get the LED-pill out and back in tightly (i use a fine screwdriver)
-Thermal grease, any CPU-grade stuff will do! Just go to your local computer specialist store and buy the smallest cheapest tube they have and dont get tempted to buy superduper-ultra-high-grade-80%REALsilver or whatever junk they use for it nowadays.... I used a tube that came free with a zalmann cooler (i installed the cooler with other grease)
Step one - Disassemble the head and get everything as clean as possible this includes the lens, rubber o-ring, reflector and especially the threads on both the outer shell and the LED pill. Get all the parts as good as you can because after the thermal grease you do not want to open the light ever again (it'll make a mess)!!
Step two - Partial re-assemble. Insert the o-ring back in place with some proper o-ring lube to keep things watertight en drop the lens and reflector back in. Double check there's no flint or other junk left in the head behind the lens. Set the led-pill aside.
Note the nice little paste-tube in the pic? Its plenty for two lights!!
The inside on the head, nice and clean!!
Step three - Get your thermal paste and drop a little blob in the head, make sure its all on the deepest half of the threads!!
And then use the toothpick to work in into the threads nice and easy.
Now, it doesn't really matter if your thermal grease makes it all the way round or not. When you screw the pill back in the beginning of the thread on the pill will take some of the excess grease and will push it around every pass. If there's too much excess it will end up next to the reflector so this is not a problem (just a waste of paste

)
Here's a better view on how the grease ended up on my light:
The most important thing is that the thermal grease is only in the lower half of the threads!
Step four - Screw the pill back in! This will go a bit harder as soon as you hit the thermal paste because you have to work it all around so use tools you can put some force behind! Get it all the way back in there and you're all done!!!