Hey Knife Chop......
There is batonning and then there is dumb batonning.....Having done both my "mature" rule of thumb is, if it is taking a lot of effort then pick on an easier piece and burn the toughy whole......Saves effort and sweat..... The problems usually come when the blade edge is flexed In a hard knot and then whacked again....... See Kephart on hemlock knots and what they do to an axe as well.....seasoned pine knots are a frequent culprit too....... Go for the straightest grain to get the fire going good and burn the knotty parts whole......I occasionally baton with a SAK but very gently....... Listen to what the blade is telling you and you will generally be OK...... Batonning is not a religion...... Try this concept..... If you baton no harder than if you were swinging the blade chances are you will be good to go.......The technique is most useful because of it's safety and accuracy........
I have yet to break a blade batonning and I do it a lot........I should not have said that......I feel a karmic moment coming...LOL......
All Best....
Ethan