jumping in here to ask a question, I have a ls-30 and druin inteface that I am trying to get working. I am thinking about just going for a Happs OPTICAL.
As I understand, the opitical can play in MAME all rotary type games (some used a mechanical rotary, some an optical rotary). But, if you use just a mech rotary, can't use it for optical rotary games.
So, unless you really want the clicky feel, seems like the Happs Optical allows you to play more games on your cab.
Hope this makes sense and if I'm wrong, please someone jump in here.
thanks,