My experiences:
Right abdomen (not too far towards love handles) = The best
Left abdomen = OK, not as good as right (weird, I know)
Upper bum/lower hip = Hit or miss (this one started bad, got better)
Outer thigh = Not good, inaccurate and caught it getting dressed all the time
Outer arm (tricep) = Good results, uncomfortable for me.
Hope this helps. Remember, we are all different.
