Here is a great link to a discussion on the E91 series that can help you understand them more than I ever could:
The E91A-C series features 33 cards each.
The E91C set is all borrwed images from the E91A and B sets. The E91B set I believe has some borrwed from the E91A, but not all.
I have an SGC10 E91A Plank
I would wait for another one to come along at a better price. They aren't scarce so you should be able to pick one up that looks good at a better price with a little patience.
Edited by VANSLYKEFAN18 (05/20/11 12:11 PM)