The big plays are not bad with my set with threshold at 0. I mean if your playing atrocious Defense you might give up big plays. You'll get defensive struggles. It's up to you to make it happen.
I'm surprise you were having a tough time getting PA to work with the USER passblocking at 30. I get a few PAs a game with the black set. A friend of mine who also uses the Panthers like you does PA a bunch during his games with decent success. You probably weren't setting it up right and the CPU is expecting you to pass but if it's working good for you at
35 that's cool as long as you keep it equal with the green set.
I thought I was done tweaking but I might have one 2 small adjustments in the works for the USER and CPU passing. I feel like my passing is just a tab bit too good. I have a few of my black set USERs helping me out.