Intentional Grounding is now updated/finalized at 76. The CPU QB plays a lot smarter on it by throwing the ball away more and taking less sacks, compared to at the default 50 where the QB would take sacks, and on a higher setting than 76, the QB forced throws for INT's instead of throwing the ball away or scrambling for a run.
Here's a link of Mariota with IG on 76 under pressure from a user blitz:
https://m.youtube.com/watch?v=XfWm5E4pybk
Also notice that I use the "no-switch rule" by not switching players on D to make it more realistic. I was very happy to see the CPU make a play like this. In all, the CPU QB has played a lot more realistic with it on 76.
Another change that I made was CPU Running Backs and Tight Ends "Awareness" being edited to "95". This is due to them missing blocks on passing plays. Before, I had RB's Awareness being edited to 85 and even tested at 90, but they still would whiff on defenders blitzing right at them. 95 is the sweet spot for them actually picking up their blocks. I also didn't have the tight end edit until now where I noticed the CPU tight end letting his only defender rush right past him when he was supposed to block him.
I also want to point out, when you edit your opponent's playbook, make sure NOT ONLY you take away all their "Four Verticals" plays, BUT also take away their "Verticals" plays. I just noticed this earlier, and was glad to find this because they're both the same exact plays, just named differently. The plays are in alphabetical order, so they're easy to find.
All of this is updated on the original post.