I made a couple 3 1/2 inch wide leather straps from premium hides, and softened them with neatsfoot oil. They are old and supple now and very comfortable. The width transfers the weight to the entire area covered, rather than creating a single pressure point. Fitted with strap locks and slots for any wireless equipment, they have served me very well. If you are trying to eliminate a sharp area or pressure point in a strap that you otherwise enjoy, I'd hit up an auto supply store and pick up a sheepskin (real or faux) cover for a seat belt shoulder harness. They come in different colors, are very soft, would cover any sharp edges, and helpto further distribute weight.