I will not be there - as I live on the opposite coast, but I've met Jim before (like 3 times) and he's absolutely fantastic!
He would gladly sign all 9 - however, the decision on that may be up to the people in charge of the signing, Jim himself or the number of people waiting for books to be signed.
The last con I was at, he asked ppl to double back through the line if they had a lot of books they wanted signed - like, come through with one or two, then swing back around so everyone could get through. I had several and there weren't that many people, so I just waited and jumped in at the end of the line. *g*
I've never been to a 'straight up' book signing, so I'm not sure on that.
However, I'd say - feel free to pack 'em all and if you can only get one or two signed - go for the hardbacks, then see if you can hit up a convention to get him to work on the others.
