Currently I an experiencing a nightmare with the Topguns. Prior to these, I was using dual Act Labs TV USB Guns and never had a problem with them. I had both guns up and running within minutes.
I was really happy with the Act Labs guns, but they stopped working when I switched TVs. With my new TV, shots only register on the top 2/3 of the screen. Act Labs says it's an incompatibility with my TV. This forced me to try the Topguns.
The Topguns seem to be very "touchy". All the posts on them seem to confirm this. They work for some people, and not for others.
I had one topgun working pretty well with the EMS driver, but when I wanted to install the second gun, I needed to switch to Smog's driver since the 3.2 EMS driver does not currently support dual guns. After this, it has been all down hill. I had one gun working with Smog's driver, but when the second gun was plugged in the BSODs started. I cannot even boot with the guns plugged in.
I've tried uninstalling and reinstalling drivers. Windows System restores, etc. I just cannot get these things to work. Now Windows just detects them as an "unrecognized USB device". I'm going to try Registry Mechanic to see if that can clean up some of the garbage left behind by the drivers.
As for cup holders. I like them. I actually have a table about 12 inches from the cabinet, and noone ever used it. I would continually catch people trying balance their drink on the top of the control panel. An accident was destined to happen. This made me get the cup holders. Now they always use the cupholders, so it solved my problem.
I just wish I could get these guns working!!!!! I miss HOTD!