As I posted before that the wah was terrible....that may have been a bit hasty. I can eat humble pie, no problem.
The problem is that you need to take some time to setup the wah to your expression pedal. Once I grasped this concept fully it was then fairly easy to get a sound that I now like.
and here's an example of
is it me or the link is not working?
Display MoreAck! I spent a couple hours trying to conjure up a wah as well. Not claiming these settings are optimum, just that it's sensible with an M-Audio EX-P Expression Pedal. Also experimented with using a tip-and-sleeve Line6 expression pedal for this purpose, (their Stompbox Modelers use these for wah) but to no avail. Stick with the Roland (Type 1) or Yamaha (Type 2)-style TRS expression pedals.
System Settings
Page 4
...1: Expr. (Type 1) Wah WahWah Wah Stomp Settings
Page 1:
...Manual 3.5
...Peak 8.0
...Pedal Range + 27%
...Peak Range - 44%
Page 2:
...Mix 100%
...Volume + 5.0
...Pedal Mode Bypass @ Heel-djh
Thanks a lot for sharing! 
Thanks for sharing your settings, but I'd remind everyone that what's sauce for the goose may not be sauce for the gander. I'd use those settings, or the presets already on the Kemper, as a guide to finding your own definitive wah-wah sound.
I'd like a super-charged one like what they used in the solo on the title track of Sepultura's Chaos AD album. More like a wow(ah) sound, but I find that's very suitable for metal sometimes.
