..I try to keep my forearms perpendicular(straight up and down) to the floor. I'm 5'8 so we're prolly the same width. With elbows just about even with shoulder line, I grip with pinkies on the ring. Keep elbows flared out for Chest or have them at a 45degree angle from bar for max pressing power.

"My nuts is halfway up my ass, but other than that I'm perfect" -Gary from Weird Science