Just a simple mod. MT-G2 in a HD2010, using a KD 5000k MT-G2, a Maxtoch 26mm mcpcb, a Qlite 3040mA driver and two Efest 18350.
I used the drill press with an end mill bit and then a dremel bit, to enlarge the led shelf, to accept the 26mm Maxtoch mcpcb. I also drilled and tapped for #4-40 screws, to hold down the star.
I didn't get fancy with the driver. It's just a stock Qlite with the zener mod and Copper discs instead of a spring, for less resistance. Then I used a nail set punch to lay the aluminum over, to hold the driver in.
Looks stock on the outside.
But that MT-G2 sure looks pretty in there. I had to open up the led hole with a drill and then a round file, to fit better around the MT-G2. I also put some tape over the end of the reflector, so it would not directly contact the led base. The wires clear the reflector, because of the 26mm mcpcb. A regular 20mm mcpcb would be more of a pain and less clearance for the reflector.
2X1835 Efest cells give exactly 3040mA from the tail cap reading. 3 modes, low/medium/high, with mode memory. It's a nice light that isn't going to overheat and it's still bright and fairly compact, with plenty of mass to keep the MT-G2 cool.
I guess I was just bored.
I am waiting not so patiently for components to finish my monster mods, but I just couldn't sit around and do nothing all day, although the wife had other stuff for me to do, which I still got done.