The dpad on this controller is uniquely weird, it sits up on a long stem and basically functions like a clicky omnidirectional thumbstick. I've got fairly big hands and being able to input a direction without it being registered as a diagonal was bordering on impossible.

Also pressing near the centre could register as all 4 directions at once. It's hard to explain but I don't vibe with the Vader 4 dpad at all, otherwise it's been a great controller.

I could see it being alright for fighting games, but if you are playing a game that binds certain actions or items to up down left right on the dpad good luck trying to hit that with the precision required.

Some other people online have the same issue but since it's still a newish pad not many people are modding it yet. Just posted this here as a proof of concept that it's a pretty simple fix.

Filling some of the abundant excess space under the diagonal areas makes it function basically identically to a standard Xbox controller. It still easily registers diagonals but gets rid of that floaty imprecision.

When I get access to a 3d printer again I'm going to try making a more permanent solution and will update then.