Final update on my Rig-uploading saga:
Thanks to something Harry said in a PM, it occurred to me that I could try not following the USB-stick instructions issued by the Exchange, which read:
UPLOAD INSTRUCTIONS
Insert USB Stick
Load the rig you want to share
Select External Storage
Choose Import/Export
Select Export current rig
Now connect the USB stick with your computer and inside the Shared folder you will find the rig you've just exported. Upload this rig to share it with other users.
Instead, I simply dragged the Rigs, as I've done countless times when I back up, to the 'puter. Presto! The RE accepted them just fine, but then, when I read the terms and conditions, I found this:
"You must be the original author of the rig and profile, in other words, please do not upload other people's work."
Case closed. I didn't create the profiles and will not breach the terms and conditions.
Mind you, the many suggested Rigs in this thread, for the most part, will sound much "cleaner" and professional than what I was going to share. The Rig was grainy and noisy; it was simply the vibe / mojo thing that had me bangin' on about it.
Glad the saga's over. Still no idea why my KPA wouldn't allow me to export individual Rigs to a USB stick, but it matters not to me anyway. Full backup and restore worked just fine, so that's great.
Lastly, sorry about the distraction. I tried. I failed. Kemper's terms and conditions reign supreme.