Review: #3 Noname $3.60 XPE-Q5 single AA/14500 zoomie

http://www.fasttech.com/products/1612/10001750/1127402-12-aaaaa-1-mode-800ma-linear-booster-led-flashligh Looks similar to the #3 stock driver, I wonder what would happen if I replace that R270 with a lower rated one - or bypass it completely, idk.
See this thread Noob needs help with #3 XPE Q5 modding for other modding considerations. Heat management is my last concern, I still have to find a way to get output high enough first, with 1 or 2 1.2V AA that is. No drivers, at least none to decent prices (I think sandwich shoppe has one around $15) for 2 AA. Maybe I could use two drivers, like in Dual driver mods for single XM-L2's (edit: just realized that’s a bad idea, after reading some more about the XPE. Guess I’ll aim for 0.800-1A max.)