I went in for a fitting at my LBS and wow did we ever make a lot of changes. Had to change position of the saddle as in flip the rail bracket over it had to come ahead so much. Raised seat 12mm, 20mm longer stem, moved cleats on shoes, spacers for pedal axle on left side to get leg to track better and ordered 70mm riser stacks for aero bars. By video even in higher position my aero position looks way better with a flatter back and narrower shoulders, pedal stroke is move efficient and power went up by 40 watts.