For a player who uses an assistive mobility device, Rule 8.1b(5) is modified so that a "reasonable amount of digging in with the feet" includes:
- A reasonable amount of digging in with an assistive mobility device, or
- Taking reasonable actions to position an assistive mobility device in taking a stance and to try to avoid slipping.
If the player does so, they get the general penalty for altering the surface of the ground to build a stance in breach of Rule 8.1a(3).
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