As Sir Steven MacEanruig, Henderson developed many techniques which advanced the state of the art of the martial arts as recreated in SCA armed combat. Among these were the development of dynamic fighting styles that feature fluid movement on the part of the combatant and coordinating footwork with the timing of sword-blows in such a way as to allow the combatant to deliver forceful blows without pausing in their movement.
Sir Steven MacEanruig, Henderson's innovations in SCA armed combat focused on dynamic fighting styles that incorporated fluid movements and coordinated footwork to enhance the effectiveness of sword strikes without interrupting the flow of combat.