Do not bend your wrist while spraying; that way you're more likely to get even coverage.
"Spray to the wet." When you're spraying your experimental sheets (you are going to experiment, I hope?) spray the first line, and you'll see that there are three lines, with the centre a solid colour, and a slightly less definite line either side. Spray your next line so that the solid colour covers one of the lesser lines, and continue spraying until the whole lot is covered. Give it a little time, before examining what you've done, so that the paint has a little time to even out, and you should have a sheet of solid colour; if not, don't despair, because it's fairly simple to spray an extra line where you've missed.
Don't wear anything woollen, while you're spraying; it's amazing how attractive wet paint finds the fibres from a pullover.
Get a good spray mask; it might appear expensive, but will make it worthwhile, since the cartridges last for many sessions. Also, the cheap types have a nasty habit of shedding bits all over your fresh, wet paint.
Use the recommended thinners for your paint, at least for your first sessions. Once you've gained experience, you can experiment with exotic liquids, but not at first.
Edgar