There are very few "tweaked" versions of profiles on the Rig Exchange, mostly are original profiles (several per amp at different settings). There are many "tweakes" available but they are more often exchanged using Dropbox to keep the RE clean.
Hey, thanks for posting this - I didn't know Dropbox was the preferred location for derivative rigs. Fortunately, the few that I have put there tended to be effected and tweaked to the point of being unrecognizable.
It might be a good plan to have that info included on the "upload your rig" page. (If it is already there, my double bad!)
What about a separate tweaked rigs category? For artist/song specific rigs?
As the user base increases, there will be more people asking for and sharing those.
Wait, there's a public Kemper dropbox?..
I feel uncool and left out 
Wait, there's a public Kemper dropbox?..
I feel uncool and left out
Various individuals have posted their own Dropbox links....there's no "official" place.
So, if you feel "uncool and left out", maybe there's another reason........ 
It is generally considered to be bad form to put yourself out in public.
