Setting up a wah-wah on an Axe-FX

Not that much different, just have to find out what CC message is assigned to the wah on the MIDI controller, then assign that value to the External controller in the Axe IO menu.

Shit, I forgot about the learn function too :lol: Been awhile since I setup my expression pedal. I know the CC number anyways since I have to manually assign it in the GCP for my patch because I'm controlling 2 MIDI devices.

Yeah, I'm not a fan of autoengage. That's why I bought an expression pedal with a toe switch, so I can bypass the volume block, and turn it into a wah, so I can use both volume and wah with 1 pedal on a single patch. Of course, the GCP doesn't have the functionality to make it work correctly, but when Fractal releases their controller it will, that or I have to buy a Liquid Foot. Voodoo Labs are working on a firmware update that they say will add the functionality I need, but it's been over 6 months, so right now it's just a waiting game to see who releases their shit first, Fractal, or Voodoo Labs. My money is on neither, and I'll end up getting a Liquid Foot :lol:

I'd attribute the zipper effect to shitty expression pedals. There's a little virtual knob on the Axe that controls the frequency, and you assign the CC to control that. When you move the expression pedal, you can see the knob turn, and it's pretty smooth. It sounds great too.