What I have experience with:
Act Labs (have used for a couple years)
Pros - pixel accurate;can rely on sights on gun body, distance & height make no difference
Windows sees as mouse
Cons - Only works with CRT monitors/TVs, won't work well for positional gun games,
require recalibration when switching games unless all games set to same resolution,
no recoil, no longer being made.
I've read they don't work with 64-bit operating systems. (actually now that I think about this, if it shows up as a mouse, why wouldn't it? I will test on my driving cab that runs XP64 this weekend) EDIT: Tested and they work fine on XP64
Another note: they don't work on TVs or monitors that have built in processing (line doublers, progressive scan, etc)
AIM-Trak (Have only tinkered with for a few hours)
Pros - Works with any screen type, works with positional gun games, support from Andy
Multiple shells and recoil options available
(IIRC,
www.arcadeguns.com is working on usb powered vibration motor)
Cons - Not as accurate; must use onscreen crosshairs for best results
(anyone who has managed to calibrate them accurately enough to
turn off onscreen crosshairs and succeed in games please correct me if I'm wrong)
Wii controllers (Have only tinkered with for a few hours)
Pros - works with any screen type, cheap (unless you buy the ones I did), wireless
Cons - Problematic bluetooth connections, Less accurate than AIM-Trak
I sometimes get blue screen of death when connecting the 2nd gun.
Definitely not ready for people who want something plug-n-play.
I'm tempted to order the Top Gun now just for the sake of comparing it, even though the IR emitters wouldn't fit between my monitor and bezel glass.
Other thoughts:
It's a subjective thing, but I've never been able to get IR guns to feel right.
I like being able to use the sights on the gun and swing it around by pivoting my body instead of trying to keep the gun in the same position it was in when calibrated.
People who are used to playing gun games on a wii would probably just go by the on-screen crosshairs anyway and it wouldn't bother them.
If my new cab had a CRT monitor, I'd probably try to use Act Labs guts stuck in different gun bodies with 24v recoil solenoids. Haven't seen that done yet, but I think it would give me the experience that I want.
Playing for long periods of time, your arm gets tired and the recoil will make that a lot worse, but I have a short attention span and want the arcade experience.
The current plan for my LCD build is to use Wii guns and just accept that they aren't going to compare to real light guns.
If I can't get the kinks worked out, the cab just won't have guns. Except for the light bar taped to the top of the monitor, no modifications to the cab were necessary, so there really aren't any changes to make to the cab.
I'd still like to see someone who knows their stuff give the USB2Gun a whirl.
For those who haven't been following gun threads, the USB2Gun is really just the gun board out of Gobal VR's America's Army (can't remember if the dedicated or conversion one is the correct one).
Standard Happ arcade guns plug into it and it makes them show up as analogue joysticks.
It even supports recoil, but I don't know if the recoil signal is sent by the game or is handled on the board.
Too pricey for me to get just for the sake of testing.
So are the act labs guns pretty much going extinct?
They aren't made anymore, so yeah.