PX-330 + SP-33 owner here. I got bad info online where some people said the SP-33 does work with the 330. That the 33 was just the newer/updated model... 🤦♂️
Did you ever figure out anything? I am open to changing the wiring. I got the pedals with the stand and I really don't want to disassemble and repackage the entire thing to return it.
I couldn't find any pinout information for the SP-32 or SP-33 online. Does anyone know where I can get the service manuals that might say? Either for the SP-32/33 plugs or for the PX-330/350 jacks.