ok besides the fact that that does NOT work whatsoever, you suggest that people hook up a single AA batt holder WITHOUT THE AA BATT right? then you "RUN" it without any voltage, right? and then all of a sudden, MAGICALLY extra volts come from NOWHERE to increase the speed of the xmod giving you the voltage of
5 batts..............c'mon
unless you plan to leave the 5th cell holder in there, this "TIP/MOD" is complete BS. haha,oh man i can't believe that you expect us to believe that..........so if your theory is true then, how about i use a 9v batt HOLDER? then i'll get the extra 9v? haha......geez, ur not a RS employee trying to get people to go out and buy single AA batt holders so that you could make a profit are you? even though you're probably not being paid on commission.
if you really want to increase your xmod's performance, ur not going to do it without a soldering iron .....besides a faster motor that won't fry your ESC from too much voltage draw.