When in my tool and diemaking apprenticeship, some of the work entailed sawing out clearances for the trim slugs in the die sets which usually varied from 2" -4" thick...the work was done on big DoAll band saws. The blade was measured according to the marks on the floor , cut off and slipped into a drilled hole for each slug clearance hole and the ends of the blade were welded together and put on the wheels.
Because of the weight, the die sets were on ball bearing plates and the blade tension was important so the vertical cuts weren't convex and if some cuts were convex or not on the line, saw filing was necessary....moving the die set across the face of the blade.
So when I rec'd my 14" Grizzly band saw, I was disappointed in the blade guides which were plastic....couldn't control the blade so it could cut on the lines and bought ball bearing blade guides and these saved a lot of time by sawing on the lines. Why leave extra wood outside the line that has to be removed by slower tools?.....Fred