The only time I've used the Norton 220 was after grinding out a chip, and it was only used enough to get the bevel close to meeting, then I jumped up to the 1K to finish up. Unless you're starting out with no edge what so ever I don't recommend going below 1K. Don't be afraid to use pressure on the 1K to abrade steel and get the bevel meeting, just remember to gradually reduce your pressure until you're not using much so the stria isn't too deep when you jump up to 4K. Some pressure at bevel set and at when you start at the 4K level is fine. Just be sure it isn't enough to flex the blade.