I trace my faves from the past with a sharpie, then cut on the outside of the line to start. I cut em big w/ a cold chisel on a heavy piece of steel, single bevel on a pedestal grinder, then finished w/ a file. no heat treat, don't get em hot, when you're grindin em, as soon as they start to change color, pull em off and dip in some water, take it easy, don't wear gloves, finish w/ a file. I use whatever circularsaw blades I have laying around or find. Get yourself a simple scale set up and use some of your old faves for an estimate on weight if your interested in that. have fun, ....look up trade point in the search too, dpg