Playing on a large screen is awesome for shooting games (and driving games and flying games).
This is a video of me playing Alien 3 the gun on a 110" screen with the real arcade recoil gun:
The large screen definately makes it feel more immersive and the lag free fixed gun is a joy to use.
The main thing for a new light gun tech (that I might buy) is that it is not limited by distance or screen size. I don't want to be forced to sit 12 foot back when playing arcade games. I like to play at the same distance as the original arcade.
That aint really possible with fixed gun games though.
The gun is mounted pretty much immediately infront of the screen like maybe 12” back.
Allot of the light gun games though you could stand pretty far back.
Obv every game is different but I can stand about the same distance from my A51 cab as I can with my Aim traks on my mame cab.
If you read the manual it actually states to calibrate the guns at full extension.
Admittedly I am not sure why as most people stand within distance to hit the start button but who knows.
I am using a fixed gun in the video. If you build your own arcade controls, you can mount the guns wherever you want. On projection arcades, the gun pedestal is often separate to the screen / main cab anyway.
A few things I learned from my big screen fixed gun session:
Choosing the right type of projector and screen is key. I have a black projector screen designed to work with the lights on. It's great for movies but it requires that the projector be mounted as close to your eye level as possible. That's fine for watching TV but not so great when you are sat up in front of the screen shooting.
The best way to avoid issues is to use an ultra short throw so the projector is in front of you. The absolute best option, if you can one, is an LG Hecto "laser TV". They come with a 100" black screen that is designed to work with an ultra short throw with the lights on.
A second best choice would be to use a rear projection set-up if you have room. If not, a bright ceiling mounted projector with a grey or silver screen.
My Gunblade and T2 guns both worked very well on a large screen once they were recalibrate for the 4:3 image on a 16:9 screen.