lOOKS NICE BUT i WOULD HAD OPTED FOR 7 XPG-R5.
It's not quite that easy. The reflectors are not made for the XPG and the emitter focus is not the same. Someday, after products are made specifically for newer emitters, I might consider upgrading. Others with LZ's heatsink have modified them various optics and reflectors to modify the beam to their own liking.
But for now, I have what I wanted; extended run-time, multiple output levels, rechargeable options, shock and water-resistance and triple the output of my original M6. I have HID lights for other tasks, but this light is still smaller than any of them (even my Boxer 24W). It also has a beautiful tint (did I mention I went home to get my light from the postal dude?) from the WH's, but the throw is probably limited by the small reflectors.
But that doesn't matter to me. It is what I expected it to be -- and then some.