These are great oarlocks! I have a set on my AIRE Jaguarundi and have had no problems with them. I really like the extra vertical range they offer. I would also recommend purchasing a set of oarlock springs especially if you use NRS oar stands. The oarlock shaft is a little longer than the stands so the is a little movement vertically that can be very obnoxious when your rowing, but the springs fix that problem.