Wheel lacing learning continues:
It helped when the trainer translated the bog-awful diagram we'd been given, and I was able to make my own version. This is the theoretical starting point:
This is viewed from the "drive" side on a rear wheel, and the arrow shows the direction of rotation. The "four spoke method" is very useful for orientation, but In practice, I've found it's best not to put the "rear" spokes (yellow in the diagram), at the beginning; partly because they twist the hub and make it hard to connect spokes to the nipple sometimes, and partly because it means bending the spokes to lace the wheel. This isn't a problem for normal people, but when I have to repeatedly dismantle and rebuild the wheel with the same spokes it can result in them looking like wet spaghetti. I find it better to put the two orange spokes in place, put in the "inside" spokes on both sides, then flip back to this side and put in the "outside" spokes.
Now I'm getting comfortable, I need to practice until I'm down to less than 15 minutes for the actual lacing, so I have half an hour to centre the wheel...