Quote Originally Posted by Tom1956 View Post
This thread is in the large format section. I was talking about the rim set shutter such as Wollensak. You do what you want.
I will, since no problems have ever arisen from such actions... and I will also defer to the knowledge of the manufacturer.

From the Graphex rim-set (AKA Wollensak) shutter operation instructions (part of the Graphic camera manual): "The speed settings can be changed before or after cocking the shutter, but is more easily accomplished before cocking."