Dunno 'bout you HD but as an 05 Number 2 Director I've done alternate SRAs to 05 with a second, and adjacent, Number 2. Tremendous fun, especially if you got a 'good' guy who just got on with it and you trusted each other. It was best to try and put them to tower in the correct order though otherwise it would confuse the hell out of the 10R/05 man shooting ("Roll NOW!") the gaps!!