Re: Shooting With Both Eyes Open
I'm a fan of XS Big Dot sights. They're a modern adaptation of the Express sight used on dangerous game rifles in since the 19th Century because they promote extremely fast target pick-up and sight alignment. The front sight is the size of a hubcap and it is by far the "fastest" set of sights I've ever used.
The hitch is they're two vertical dot sights. Several years ago I bought a subcompact autoloader that came with two vertical dot sights and figured out pretty quickly that my sight alignment process seemed to be more instinctive with that style of sight versus three horizontal dots, and FAR faster than Glock's box and dot. YMMV.
I figured why not capitalize in on this so I bought (2-dot) Heinie Straight-8s all around, then I came across the XS Big Dots. That was a HOLY JEEZIS! moment. Sight alignment is so nearly subconscious that it feels like the front sight jumps on to the target of its own accord.
One side effect of the oversized front sight I noticed was I have far less a tendency to close my weak side eye. I'd never really thought about it but in a SD scenario, I'd reckon keeping both eyes open is better for situational awareness. Now I squint the weak side eye only very slightly but that's more a muscle memory artifact from decades of shooting with my weak side eye closed than from actually needing it.
Long story short, if you think keeping both eyes open in a gunfight is a good idea, and if your brain can adapt to vertical two-dot sights, have a look at the XS Big Dots:
10Generation, in an era where nearly all guns are mass-produced, we've mostly dropped the habit (except in Europe, where it's still quite common), but once upon a time, the stocks on most all hunting guns were bent slightly to move the plane of the barrel into more direct alignment with the shooter's eye. For a right-handed shooter, it's called "cast-off" and the stock bends to the left a tad. For a Left-handed shooter, it's called "cast-on," bent to the right. Cross-dominant shooters can order "heavy cast" so it feels natural to mount the gun on one shoulder but sight down the barrel with the eye on the opposite side. An especially broad-chested shooter might also need a heavy cast.
The down sides are that cast stocks increase felt recoil, and tend to make the gun unsuited for an opposite-handed shooter.
I know I'm a little too late but at least you have options if you ever want to switch back to shooting with your natural hand.