Downstream
Toe hang is a downstream number
You can photograph hang. You cannot photograph why it exists. On Birch we treat hang as what a throat produces on a rail, the way a mill treats grain after the board is cut.
A golfer who walks in asking for “thirty-five degrees” is asking for a picture. Two throats can show a similar hang and delay the face in opposite ways. A plumber with a heavy toe can hang like a flow and still jump. A short slant can hang quieter than the poster and still wait enough for Pine Canyon.
We hang every head we keep on the same rail, same 34-inch marks, same hook. We write the number after the sit has already chosen a throat. If the number disagrees with a magazine, the magazine loses. Magazines do not putt at 7,000 feet and they do not know your ponderosa shade line.
Face-balance is not the enemy of hang. It is a different throat family. We will say so if your arc is a push and a flow would be theater. We will not sell you a hang number that a neck cannot honestly produce without stuffing the toe with weight that has nothing to do with the lean.
If you want the sequence, how a flow leans is the order. If you want the argument, plumber versus flow is the house fight.