Do any of you know a pcb that can be easily installed inside a qanba fight stick?

Install DPDT switch (inside cord box) + Hori Fighting Commander 4 padhack is what I would use.

FC4 seconded. One of the easiest padhacks ever.

The Motion carries, any appose (none), (bangs judge’s gravel)
It is unanimous the Hori Fighting Commander 4 for the PS4 is great for PS4 Pad Hacking.