anything over 3 hrs in single aisle should be illegal.
Did you see the new XLR 321 can go 14hrs? F that as a pax. Some dude standing with his junk against your shoulder because he has to stretch every hr or the old lady who walks up and down the aisle 50 times an hr so you cant stretch your leg out or have to pull you shoulder in...
btw I stand every hr also so I feel the pain