I used to pull E100 and E64 to facilitate printing on Cibachrome. Expose at 1/2 ISO, ie 50 or 32, and cut the first developer time. I use Kodak`s recommended pull time with the E6 6 step kit instructions.
If you combine this with an uncoated lens, you will get transparencies that look terrible, but they reversal print beautifully. With standard multicoated lenses you get very nice trannys that project very nicely.
Grain does not seem to change.