I've no experience with this big size RR but I know from my own experience of a smaller RR (a no. 2) that they have moderate coverage which may work head on with the next larger size if you stop down a good bit (in my case using the above-mentioned no. 2 on 5x7, stopped down to at least f:32). So, you will be able to use movements using 8x10 up to the 11x13 size and could probably squeeze in a good portrait on 12x15. Also remember, closer than infinity gets you more coverage. Although for this one, you'll need some long bellows.
Ole knows more, without a doubt.
EDIT: Sorry, my lens is actually an Aplanat but it shouldn't change the overall assumptions here (As much as one should trust assumptions vs the cold, hard facts).