Yeah you pretty much have to push, then rip now. I used to put in my linebacker on sure passing downs and edge rush, but they don't allow that this year.
Oh, and if you blitz on a running down, be sure you know where it's going, or you'll overpursue and get burned. I used to run the 3-4 cover 1. Because one person edge-rushed, and one LB stuck in coverage. One safety was deep, and the other came up. Worked perfectly.