I like how the S10 Jump Seat would provide the most open available space, but I gotta think about my friends. I am from Texas, where everything is bigger, and I know people who weigh as much as 300 lbs. I wouldn't want to have to ask them to sit in a tiny little kid-sized jump seat. If I cant find a bigger jump seat with more cushoning that is physcally bigger and not so kid-sized, then it would be better if we had a wide "jump-bench" like I previously posted that folds up vertically instead. Granted, thats a lot of weight to be putting on foldable-furniture, but I think I could make it work with a little effort. I just need some tips on what would fit.