Is there anything you do different than Leach? Any extra concepts or tweaks? Different rules?
I run more Empty than he does, because I think it's great for quick game. Wazzu is running some Empty this year but I don't think I had seen a Leach team run it since Kentucky. I also go faster, because people in ODs are so slow that I have to make up for it to get my snaps in.
As far as concepts, I'm running what he does. Shallow, Mesh, Y Corner, Y Cross, Shakes, Verts, Stick, screen game, etc. I don't run as much Mesh because the game ruined it but I do use it. I don't run as much Verts against users either, because the online cheesers ruined it since that's all they use so everyone can defend it pretty well. Run game is just IZ or OZ and maybe a counter. If Draws worked, I would replace all that stuff with Draws probably.
Rules are the same. Count numbers and if I have 5 or less, run. Occasionally, I'll run on 6 because this game is so overpowered run game wise. Overall, I try to keep it as pure as possible. I ran more of a TCU raid at Cal, but I like this version way more. I consider it the real Air Raid.