I would like to see an Aimpoint with the brightness adjustment dial on the left side of the optic.  Like the m4s, but on the left side.

One of the things taught in carbine class was to never take your hand off the pistol grip.  The reason for that, if a bad guy turns a corner, it can take over a full second to get your hand back onto the grip and finger onto the trigger.  One second is a long time in a situation like that.  Studies have shown eight shots can be fired in one second.  It would be really nice to have the brightness adjuster on the left side, where it can easily be reached by a left hand.  It would also mean the flip magnifier wouldn't get in the way of the adjustment knob either.

Or you could just reach your left hand over the top of the rifle?

This. You learn to just deal with it.

Mine is on level 10 and doesn't change. Anything less and dot is too faint to quickly see, even at night.

Also in your scenario with bad guy being that close you should probably remove the magnifier.

The earlier M2/M3 series were designed so you could mount the optic 90 degrees counter-clockwise to place the control knob on the left instead of the right, reversing the W/E adjustments. Should work w/the PRO as well, but I don't have one to test.

Tomac

I think it's a tradeoff to minimize perceived tube effect to righties, possibly to avoid accidental adjustment by rubbing against gear when slung as well.

I actually prefer the knob placement on the right with the M4S because my left thumb and forefinger make a ring around the ocular allowing me to adjust while keeping a clear view through the optic and my finger tips don't bump the ocular bell.  

With the magnifier flipped down, it somewhat makes the knob difficult to get to.

This pic shows the magnifier in the up position.  




That is a good point about the knob rubbing on stuff while the rifle is slung.

No, it'd slightly obscure my left eye more shooting righty.  Reaching over the top is no problem and no need to change it before, during or after action in the same environment

This is what I do and I prefer M2/3s or the PRO. 

I use that exact arrangement on my SBR and the same mechanics apply with and without the 3x flipped in behind.  Just lay your left hand on top of the optic with your thumb and forefinger encircling the ocular and it's right there between your fingertips.  The knob doesn't extend past the rear of the ocular bell so the 3x doesn't really interfere. 

I just leave my Aimpoint on my work rifle on. It's set just bright enough to see during the day and its not too bright at night either.

But thats a good idea the other guy mentioned, just rotated the tube in the mount until its where you want it on pre-m4 models.

I kind of figured the biggest reason for tucking the switch where it is on the M4S was a matter of protecting it from getting broken. Thats probably the most common failure I've seen with the M4, M3 etc.. is the switch getting physically broken from getting dropped, struck or abused on hard surfaces.

This is what I do, and never really thought about the tactical consequences behind it.  When at the range, shooting on a bench, use my left hand over the top, never break grip or sight lock.

77