Mostly I'm finding that QB Accuracy has to be turned all the way up, to increase completion pct. Then the best way to reduce the Yards-Per-Catch is to turn WR Catching down. I also think turning down DEF AWR will (a) increase comp. % some, and (b) not increase YPC too much. This is all on AA difficulty. I've gotten through 20 quarters of keeping stats with random teams.
But the statistical models need more data! So if you want to help, that would be awesome, and here's what you do:
1. Set the sliders at wherever you like. I set them the same for both Human and CPU. If you don't want to do that, you can set them wherever you want, you just have to keep stats separately for Human and CPU.
2. Play the game, jotting down the stats. (I actually only play one quarter because I get tired of it, and it doesn't let the momentum get out of hand. It doesn't matter how much you finish.)
3. The key is that you need to write down a couple of the stats AS YOU GO. I need to know the yards gained/lost on EACH run or completed pass, not just the totals.
4. Then at the end, also jot down these things. Total for both teams is fine if the sliders are the same for both sides; otherwise, give 'em to me separately:
Completions
Pass Attempts
Sacks
Interceptions
So then post those stats. So for the running and receiving, my lines look something like (one number for each carry or completed pass, with commas in between):
rushing: 3,2,-2,0,10,-1,3,7,11,-3,5,1,1,-1,2,7,1,1
receiving: 11,42,4,7,35,48
I don't care how you format it, I'm just trying to show that I wrote down the results of each individual carry. (Oh, if the QB gets sacked, I don't write that down as rushing. But if the QB takes off and is just running, that's definitely rushing.)
Oh yeah, and of course, post the sliders you used.