Tim,
after doing some more Googleing and reading your comment I decided to give it a try - Success! The cutter makes perfect neat cuts on BC Vibrance Rag, and it appears to do so effortlessly. I just printed a thickness pattern and the fist test chart from my colormunki, using the auto cutter.
By the end of the day I am planning to go through a 20' roll with a few test prints. At this point I plan to use teh auto cutter throughout, will get back to the forum if any problems occur.
Thanks,
Stefano