Realista,
Reflector in aspherics light is not good idea. Reflector does not contribute to hotspot intensity at all. It just adds ugly spill around main hotspot. I tried that before :). I even have Wolf eyes night hunter(first edition) aspherical flashlight that uses small reflector and beam is very ugly and ringy.
I also don't think XHP-50 or MT-G2 is right choice for this flashlight. This flashlight is dedicated for throw so throwy emitters are must with this light( XP-G2, XM-L2, XPL)
Reflector under aspherical lenses looks like this:
Orange peel reflector:
Smooth reflector:
Only thing that can enhance the throw is RA (recycling collar). MEM from BLF is original inventor of RA.
Look at this thread post 457