FandyFire STL V6 VS FandyFire V2

i received the FF STL V6 before a couple of days from dx. there is also a new version which looks pretty the same FF V2. i read somewhere that the new version have the deeper reflector. does anyone know something about that, does anyone have the FFV2, and whats difference between V6 and V2, except the drivers and mods.

this are dimensions of reflector of FF V6

FF V6
http://dx.com/p/fandyfire-stl-v6-cree-xm-lt6-2-mode-1000-lumen-white-led-flashlight-2x18650-3x16340-3x123a-91137

FF V2
http://dx.com/p/fandyfire-v2-xm-l-t6-1000lm-5-mode-memory-white-led-flashlight-w-strap-black-2-x-18650-115222