I had the issue of not being able to cut off a piece of material 7" in diameter on my 4 x 6 bandsaw. The vise would not open up enough to allow the piece of material to fit. So I took the fixed jaw and moved it back about 3/4" back and at the same time closer to the blade. Drilled and tapped two new holes for the fixed jaw. I very seldon make any angle cuts. If I do, just reposition the jaw for those cuts. Now I can 7" OD about two thirds the way thru. Stop, rotate the material about 180 degrees, realign the saw cut and continue cutting. It get's me by for now.