Continued working on the left longeron. I had bought these plastic vise jaw proectors. Don't waste your time. They don't work. Anything you need to put much pressure on will just slip out of the vise when you apply pressure. I ended up putting several layers of duct tape. This first one was pretty difficult. For a while I thought I was going to have to shoot myself. Now actually I think the right side will be fairly easy. We shall see.