I've watched this whole series a few times now. Rorion and Royce are wearing jeans and T shirts and showing "street" techniques in a darkened corner of a gym . . . and it all looks like it will work. Which is a weird feeling. This video is like 25 years old and it's better than almost any "street" instruction available. I really like the "tear their finger off" move.

Note: search function had nothing within 4 pages for "Gracie street", so apologies if this is a repost.