Eventually managed to get self, picture and lunch 1/2 hour together
I have attempted to sketch below how the second cut (to make a strip out of a plank) varies from "c" grain (in the middle) to "A" grain at the edges - and it does so gradually and progressively
SO - it makes sense to use the C grain (if you are not going to use it as a wing spar) for the planks which bend and twist least - these are generally at deck level down to the "turn of the bilge"
Then the planks get progressively more "shaped":- bent and twisted so it makes some sense to use the planks in sequence from the middle outward as you plank down the hull -
Also the advice is to use, as far as possible, matching planks on each side of the hull. What better way to do that than by using two strips from the same (big) plank, and with a similar grain pattern
Sorry - I'm rambling again
andrew