I may get a lot of disagreements or "not necessaries" here, but I'm kind of super cautious. I'd get two strings... the ultimate right one and one a tad longer, and string it with the longer one and shoot it for a day or two that way. I'm always leary of putting an old bow that has been out of use directly to full brace height and/or draw. I like to exercise them just a bit in case there are any problems that aren't immediately visable. Of course, i developed this approach messing with old lemonwood bows, but even with glass, it makes me feel just a bit more secure.... as does wearing a bicycle helmet for the first few draws I may feel foolish, but when a bow breaks, it's no joke. One guy on the Hill list had a really heavy selfbow break and hit him in the head and ended up in the hospital in a coma for several days.