Initial Setup for "Flat Tire"
Front of the stack makes a hard deep cut to either side of the stack. Force side generally works best.
As soon as the front of the stack commits to a side, the back of the stack breaks under to the opposite side.
The original deep cut from the front of the stack button hooks back for an under. This is by design, we wanted this player to come under all along.
At the same time, the under from the back of the stack breaks off his under cut and goes deep for the first player.