I am going to build a dedicated 8-way vertical, CRT SHUMPS build.  First, let me preface that I am not a bullet hell guy.  I am 51 and the SHUMPS of my era are Gorf, Time Pilot, 1942, etc.  With that said, I have grandchildren who love to button mash and the more carnage on the screen the better.  Either way, I am going with a dedicated 8-way vertical CRT build.  I bought a cabaret Galaga/Ms Pacman at a steal that I thought would make a good platform but that would be single player only.  That is fine for me, but some of the later shootem ups were two player but to be honest I have never played any of them.  What would you guys recommend?  I can flip the Galaga reunion for a profit, but I happen to have a love for cabaret machines or I found an Aero Fighters cab local for a decent price that is a two joystick cab.  
What say you?  Do they make a dual controller CP for those Midway cabs?   That would be ideal.  Let me know our thoughts fellas.
Chris