That dude right ^there^ hit the nail on the head. I don't think any ride is designed to be comfortable after the 25th time, period. Not sure why you expected that to work out in your favor.
I'm not one to go too far with complaints about restraints before I've given then a shot, but I do at least think that the barrel roll is going to be significantly less...cool than it was on S:UF with only a lap bar holding you in. The rest of the ride, I just hope they're comfortable. But hanging by just your thighs just isn't something you're going to get here, and it's a shame.
I think the hangtime factor is huge, like I cant imagine F00l Throttle with OSTRs. The hangtime in the loop is the best element