Dave, I haven't noticed that paticular magazine before but I will try to remember it the next time I am at the bookstore.
GB, I bet I read that phrase about 100 times before actually working on the scroll saw taught me what it meant. I mean in my gut. It does take a slight forward pressure to make the blade advance but I can usually tell if I am starting to push too hard.
I'm glad to have learned it on a scroll saw. Hopefully the knowledge transfers.