i'd bet about a dollar. there are actually very few FD's which haven't made a pair now, - most of his range is single pair hands (well, two pair but whatever), with a small amount of slowplayed nuts. he seems to have far too many hands he will want to showdown for us to check a hand this strong, and not very many hands he will be likely to turn into bluffs. i don't even mind betting as small as $0.8 if you think he will call with shit like 75s to that size which he wouldn't vs $1