Today I profiled some of my Acoustic IR's (Bodys of Guitars, Celo's ...)
I put then into my AxeFx II and profiled then with the KPA.
It works but you have to be careful with 'refining' - sometimes it 'removes the body resonance'.
The funny thing is - there is no amp involved but the KPA stores a part of the IR into the amp and another part into the Cabinet
Yes, a CAB only 'profile mode' would help too.