I however bench as wide as is legally allowed, and I am five eight(ish).
Index on the rings for me. My training partner, tho goes pinkie or ring finger on the rings, even in a shirt. Each to his own.
I know Bill Carpenter and Jason Keene both of whom have benched 600+ at 242 or under both use pinkies on rings, but Kenny Patterson and George Halbert, both of whom are 700+ at 242 or under go index on the rings, so who can say what is best across the board?
B.
P.S. I think tho that in a shirt, wider is better. . . across the board.