Chris McCartin and Scott Shingler did all they could to keep up with Faber Jamerson on moving day at the SunTrust State Open at Independence Golf Club. McCartin fired a 6-under 66 and Shingler a 3-under 69 in yesterday’s third round. They were nearly flawless on the 7,127-yard, par-72 course. Yet, Jamerson stretched his lead to five strokes with a splendid 66—a round tarnished only by a suddenly timid putter that failed to convert three times inside 10 feet on his inward half with a course-record tying 62 within reach.