Sorry if I came across as not liking complexity, I actually thrive on it and the more complicated the setup the more I enjoy it when it works (when it works heh). I just think there is little benefit between using a native PC gun vs adapting a HOD1 gun to use a PC with.
As for Type 2 guns, I like the fact that it's compatible with many more games (Jurassic Park, Sega Naomi, etc) given you have the gun boards and all that comes with it. I realizing my focus is not a MAME cab per se, but a cab I can use for more than 1 game even if it is only real hardware.
For example, I like my model 3 racing cab because I can play Daytona 3, Scud Race, Sega Rally, etc, on it natively. If I can get that with a gun cab, it's good enough for me, if it works with MAME/PC, it's a plus.
I'm certainly intrigued on how your Sega Type 2 guns setup looks like and how it works. I won't be getting the HOD2 cab (if I ever do) any time soon, I have a backlog of projects to work on first.