Those that know of me will find this post weird, but here goes:
Well, tonight I played Ikari for the first time with the REAL controls using Druin's interface, and it's great!
haha.
All the past 3 years I haven't had any joysticks, any control panel, certainly no cabinet...at best I hooked up LS30's temporarily for tryout on the Rotary Interface with LEDs for the output, but I haven't had a keyboard encoder either. Just some scrappy parts to just do the design and research portion, not the gameplay.
I got Ipac and Optipac yesterday and wired up a little test panel on scrap wood, hooked up the rotary interface, and played some Ikari the proper way. Great experience FINALLY!