I'd think that you can just check them against a picture of them on Google images. Not sure about a serial number.
The type of Mad Catz I used (see pic in previous post) doesn't have a switch for the X-axis / D-pad as they were separate on the original stick. I could have made this and, subsequently, I wish I had for compatibility with certain emulators which don't easily recognise the D-pad. Maybe a future modification...?
As for buttons, the ones you can see are all I have wired up, being:
A
B
X
Y
LB
RB
Select
Start
Xbox guide
The other 4 buttons, including the triggers set as digital rather than analogue buttons are wired up internally in case I decide to swap things around. There doesn't seem any real need to have more face buttons than I've currently got.
Cool. Yeah the emulator compatability is what I meant. I am sure when I used to have the EX2 some PC emulators didn't like it, and I recall reading about "better" sticks that let you switch axis or dpad.
I think I misunderstood, when people said they were using madcatz pads/sticks to mod, I assumed you bought the SF4 SE/TE or SF4 pads (which I think all have that switch on their). Didn't realise it was the cheopo "XBLA" stick you were modding (which doesn't have those options).
rp2000