I found this the day the new route chems came out. I had been keeping it quiet, but it looks like it's pretty public now. The post route on the left side of Pats Sail is special. Deep third zones will match it and play man to man against it. That leaves the deep left side of the field wide open. There are a few ways to attack it.
The deep crosser from the deep route specialist chem will do it, but that's not the only way. You can put your HB on a wheel route, then motion him left. It creates a route combo similar to the old fake screen wheel.
If you're facing this and want to counter it, just put your deep third zone into a deep quarter or half and it won't match.
Good luck guys!