Has anyone tried shoulder-less spring bars on their Marine Master? By "shoulder-less", I mean the type where the two spring-loaded ends are the same diameter for their entire length. There is no step, or "shoulder". These are the type of spring bars that are used on Rolex and Tudor submariner cases with drilled lugs. They seem more secure, as the ends extend deeper into the lugs. However, I think the central tube's diameter is far less than 2.5 mm, so the stock bracelet end pieces would fit loosely.