Hi All, I am just wondering if there is any difference between Ralph Lauren Black Label Short and Regular besides arm length, and jacket length, anything on the arm hole, lapel that might be different? A RLBL 38S would fit me perfect, but it seems the only thing on discount I could find is 38R not 38S. If it's only arm length, then easy fix. If it's jacket length, then I really need to see how much I might need to take off. Any idea what's the maximum length you can take off on a jacket relatively easily, or there is no rule to that.