Not too many posts on smart fasteners for sw 2010.

Do any of you machine designers use smart fasteners?  To me they seem pretty clunky, and I can't figure out how to rename them or configure multiple grades (ss, gr5, gr8 etc).  Also I seem to have screwed up my hole wizard by disabling some unused fasteners... So I'm not seeing an advantage to using it over my old hand-made fastener library.

But I'm also pretty ignorant and am really curious about how the rest of you may or may not use smart fasteners.  Thanks for any opinions!