Never mind. I'll get either a Seimitsu LS-32 or LS-56 (not much difference between the LS-32 and LS-40, and the Suzo 500 is out of stock everywhere). Been thinking of putting square (or maybe triangular) fire buttons on my joystick instead of round ones (one of my favourite joysticks, the Zipstik, had square yellow fire buttons, although some versions had pink and even blue buttons). Has anyone had any experience with Sanwa OBSF-24KK or Seimitsu JB-series buttons?