Hey I am looking into speedrunning some games on my SFC and unfortunately both controllers I own can be a bit iffy. One the start and select buttons are very unresponsive and both seem to drop input from the Y button when held down causing me to lose P-speed randomly. I am looking into getting a SF30/SN30 by 8bitdo but have heard that the d-pad on these is overly sensitive and causes accidental diagonals. Has anyone here used one and can tell me how they preform? Or additionally recommend some other alternatives?

I'd recommend getting some controllers from japanspel (https://japanspelshop.se/index.php?route=product/category&path=88_102) and also buying some new rubbers to replace the ones in the controller with. There's plenty of good places to get controllers/rubbers from, but I've never been let down by japanspel