My HORI Real Arcade Pro V Hayabusa joystick finally arrived from Amazon, and man am I happy.
The so-called "Pro" Controller that I was using was total dog shit for Ultra Street Fighter II because the D-pad was messing up my movements all the time. For some reason, the D-pad has a bit of a click to it that causes left/right presses to also press up or down (and vice versa). The button layout wasn't the greatest either (not for a tournament fighter, anyway). I actually stopped playing the game for a month or so because of these issues (and lag).
Luckily, those issues are now gone, and I look forward to playing some more Street Fighter, except this time I don't have to fight my opponent and my controller. I just wish this arcade stick had been released at the same time as the game.
Note that this is a wired controller, so you have to connect it to the Switch dock through the built-in USB cable. Allegedly, this cuts down on any wireless input lag for the controller itself, but I don't know if I've ever noticed input lag within wireless controllers.
Anyway, here are more pictures of the packaging and the stick itself:
