A friend (no, really) is having a lot of trouble adapting to his traditional bike seat. Without going into excessive detail, he's complaining that the nose of the saddle "rocks" his world too much.
He's tried padded shorts and a gel saddle cover, but things are still unhappy.
Does anybody have any experience with alternative bike seats like the Derri-Air, Spiderflex, "The SEAT", et al.?