Offensive Line Guru, Jim McNally does a great job explaining Duo Blocking. I’m always interested in hearing O. Line Coaches talk about Duo Blocking because of the Great similarities to Triple Gun Bolcking

1. Both want Vertical Movement (Cavity not a Crease)
2. Both want Square Release by O. Linemen
3. Both emphasize Double Teams

The Triple Gun Blocking is enhanced by “Smart Splits” which help the Double Team while expanding the Hand Off Key