Somebody should ask Fed - Hey Roger, show us how you hold your FH grip so we can take close-up pictures of it. Not sure it will ever settle the debate, but... As for my view - it looks like my old FH grip, which is an eastern. Knuckle is on the edge between the bevels (more towards the "flat" side), palm is more "underneath". Not a SW, modified eastern at best. And yes, it is more "extreme" than Sampras' "V on-top of the racquet" FH grip.