One thing that is different about the III, as compared to the II, is that there are no factory programmed CC # assignments.
Each user, can determine what CC # number controls an effect or parameter.
So, I can program my III this way:
DRIVE 1 - CC 1
DRIVE 2 - CC 2
CHORUS 1 - CC3
CHORUS 2 - CC4
and another user could do it this way:
DRIVE 1 - CC75
DRIVE 2 - CC119
CHORUS 1 - CC 12
CHORUS 2 - CC 37
Both users are "right"!!!!!!!!
However, if the first guy programs his foot controller to send those CC#'s, but then he plugs his controller into the other user's III, it won't control the stuff he thinks it's supposed to control!!!! He may get some "unpleasant" consequences. Essentially, this pairs a foot controller to its own Axe III - you can't borrow my foot controller for a gig, unless we've both assigned identical CC numbers within our Axe III's.
I hope this makes sense.
Step 1 - assign CC#'s inside the Axe III to the parameters you wish to control. KEEP A WRITTEN LIST OF YOUR CC ASSIGNMENTS. I recommend you decide on your CC assignments first, by writing out on paper, the stuff you want to be able to control on/off, like Drive, or Delay,
Step 2 - go into the Axe III midi menu and make the assignments match your written list.
For instance, you could look at the CC assignments in the Axe II manual, and mimic those assignments. Scenes is CC34, for example. If you assign scenes to CC34 in your III, then you will have to program your foot controller to send CC34 when you step on a scene button.
Step 3 - program your foot controller to correspond to the midi assignments you made from your written list.
Your scene buttons on the foot controller would send this info:
Scene 1 button: Send CC34, value 0
Scene 2 button: Send CC34, value 1
Scene 3 button: Send CC34, value 2
Scene 4 button: Send CC34, value 3
Good luck!!!!!