Geoff Keeton on case 4 in The Transmission of the Light, Upagupta
You also might be interested in
Cathy Wright on Case 12 in The Book of Equanimity
Karin Ryuku Kempe on case 4 in The Gateless Barrier, "Huo-an's Beardless Barbarian."
Cathy Wright on case 17 of the Gateless Barrier, "The National Teacher Calls Three Times."