I always use all white flour instead. Your call. A lot of people would probably be OK w/ the whole wheat, since it does have half white flour as well. If you don't do well with insolubles, I'd just do all white flour. Anyway, I've made these several times and they are excellent!
P.S. if you're lazy, you can spread the whole batch in a jelly roll pan and bake that way
"It's one of the most serious things that can possibly happen to one in a battle -- to get one's head cut off." -- LC