John Strollo is one of the great offensive line coaches around. He is a Jim McNally disciple & is a a creative innovator.. Duo blocking is almost the same as Gun Triple Veer Blocking so I’ve used some of Jim McNally Clips. John Strollo’s Slide Veer is even closer to Gun Triple Blocking. Remember ‘Seams & Double Teams” & “Create a Cavity not a Crease” & the importance of staying square – John Strollo covers this in another great presentation