Ask ten drummers where sticks break and ten will say the shoulder. There is a reason, and it is decided before the stick is turned.
Grain runout
Wood fibres run the length of a stick. If they exit through the side, that is runout.
Load concentrates there, and the stick snaps at the runout rather than at the thinnest point.
Why species is secondary
Oak with runout breaks. Straight-grained maple can outlast poorly selected hickory.
Selection is a sorting cost at the mill, not an exotic material.
What rim shots do
The shoulder is the contact point on a rim shot, so wear and load meet at the same place.
Rotating sticks in practice spreads that wear, which genuinely helps.
What to ask for
Straight close continuous grain, selected. And pairs matched by weight and by pitch.