Arthroscopic reconstructive surgery of the shoulder is extremely demanding. The advent of suture anchors and knot-tying instruments has greatly facilitated its development. Knowledge of the anatomy and surgical principles alone is not enough. Familiarity with specific instruments is also important. We describe our experience with the Elite Cuff Stitch Suture Relay (Smith & Nephew, London, U.K.). We describe a new concept on how to use this suture passer or similar instrument. We advocate this new concept of "concave in and concave out."