Now that sounds useful.
I've found the old degrees=crosswind/nm per minute really handy of late.
So the other day I was given a diversion, cross wind was 6Kts, at 90Kts (1.5nm/min) I had an easy 9 degree correction angle, which did the trick - flew 279 instead of 270.
Though it took me more than 2 seconds, so your prepped sheet is probably better.
Sorry about the thread creep (though on this thread...).