Hi Bill, Hope I can make it understandable; my mill has 2 different length stops, I use the long ones to square up the log. After the first slab cut I turn the cut to the long stops, you can roll the log so the cut is square on the stop, do this for 3 sides then go to the short stops.Don’t know if your mill has any thing like this, If you look at the pictures of mine you can see square tubing welded to the log bunks with lock bolts, the stops slide into these, and adjust up, and down. Blades are different; some are for soft wood, some for hard, some for frozen logs. This best place to buy is Cook’s sawmill. If you call tell them what mill you have, and what wood you saw, they will custom make blades for your mill. Wayne uses their blades too. Hope this helped.