Here in the TGM community we have plenty of discussions about why the Sanwa JLF is the best stick for TGM, but hardly any time is spent talking about the optimal buttons. From my entirely anecdotal research, most people just stick with Sanwa for buttons as well. As someone who has clocked quite a bit of play time with both sets of buttons, I firmly believe that Seimitsu buttons are better than Sanwa buttons, at least for TGM. Sanwa buttons have something of a "mushy" feel to them. The button doesn't really put up too much of a fight when you try to press it and it actuates with only a small amount of force applied. This sensitivity sometimes causes accidental rotations in a game of TGM. I have some notoriously bad fine motor skills but posts like this one from @xyrnq confirm that I am not the only one who experiences this problem. Semitsu buttons are stiff. Not as stiff as a mechanical keyboard switch, but I can't actuate one without meaning to. I am one of those gamers who insists on having perfect controls if at all possible. Accidental button presses, often run-ending, should be eliminated. Seimitsu buttons eliminated this issue for me. I did some shitty experiment stuff to prove that I am not crazy: These are standard, completely useless, United States pennies. Stacking them on top of a Sanwa button actuated upon the 11th penny being added to the stack. (I did try a couple different ways of placing the pennies onto the button, both methods actuated at 11) The same 11 pennies placed on a Seimitsu button did not actuate it. I could only find 14 pennies lying around, and that didn't actuate the button. I then stacked on a couple of washers that I had lying around, and still nothing. Sanwa buttons are great for some other games and honestly not that bad (I play on Victory Pointe's all-Sanwa setup without any serious drop in performance), but I think a hybrid setup of a Sanwa JLF with Seimitsu brand buttons is the more optimal way to play. If you're interested, you can purchase Seimitsu buttons here and enjoy your slightly less mistake filled stacking!