Darn it, I like this light but it seems I lost the 'lottery', and I don't mean the tint lottery.
With the various reviews and owner pics about, it appears that the orientation of the tailcap relative to the side switch is random. Unfortunately, my copy has the same orientation as Selfbuilt's review copy. In the pic where he's holding it, you can see that in the reverse grip, his pinky has a hard time reaching the side switch. I was hoping to be able to orient the light so I could trigger the rear switch with my thumb and the side switch with my pinky, and I'm a righty, so the gun goes in the right hand, the flashlight in the left. When held so my pinky can reach the side switch easily, my thumb is right on the 'wings' that prevent accidental activation of the rear clicky.
If I were a lefty, this would be perfect because when holding the light in my right hand, my thumb goes right between the wings to the rear clicky, and my pinky rests on the side switch.
The other downside is, after checking he threads on both the head and tail, they're both single helix and made so that they can only screw on in one orientation and will ALWAYS end up at the exact same angle when tightened. Some units evidently have the threading at a different orientation that results in the wings being at a different offset. I could loosen the head a little to change the angle of the offset between the wing tabs and the side switch, but I don't like the idea of the head being a little loose. It's not possible to loosen the tailcap as those threads are anodized and will lockout the light. Now if they had made the light using dual helix threads, instead of single helix, you could unscrew the tailcap and turn it 180 degrees before screwing it back on and the orientation could be flipped 180 degrees, which would allow for lefty or righty use.
I DO like this light in general, but that one problem significantly reduces the ease of User Interface. I can see why Grizzlyb recommends lights with NO side switches, as this would never be a problem for a rear switch only light. This was also the reason I avoided lights like the Sunwayman V11R, as it requires changing grips to turn the light On and then switch between brightnesses/modes.
The 4/7's QPA-G2 that I EDC allows me to turn the light On with my thumb, switch modes, and if I want Turbo, I hold the head with my pinky and twist the body with my thumb and forefinger, and I can also then trigger the strobe with my thumb. If I know I'll be using the strobe, I twist the body while drawing the light and turn it on and trigger the strobe with 2 presses.
A tailcap dual-stage switch in this light combining the interface here and from ZL might be a great solution, if the button was on the tail. Quick half press for Turbo mode (fast activation to brightest mode), more quick half presses to cycle through brightnesses. Long half press to start in Low. Quick full press to start in Strobe mode (that way, under high stress, you can trigger the tactical strobe by mashing the button). That IMO, would be a great interface for a tactical light.
Max
P.S. for anyone who HAS one of these, you can quickly trigger the tactical strobe from any steady brightness level (non-blinky mode) by holding a full press of the side switch. How do you go back to a steady light (non-blinky mode) from one of the blinky modes? From strobe, a half press cycles between SOS, beacon and back to strobe. A full press turns the light Off. Holding a full press also turns the light Off. The only method I've found was to use the side switch full press twice, which turns the light Off, then back On in whatever brightness was last used before the strobe was triggered.