KSHG3 Underhook Half Guard - Part 3 This video covers timing and how to off-balance your opponent when shooting underhook from (High) Knee-Shield Half Guard.
KSHGT Underhook Half Guard - Part 2 This video covers proper positioning with some common mistakes to avoid for a successful underhook from (High) Knee-Shield Half Guard.
KSHGO Underhook half guard - part 1 This overview video explains how you can safely underhook opponent from (High) Knee-Shield Half Guard.