I got the day off of work today, and I decided to give your sliders a try. So far I've played maybe 5 complete games and 2-3 partial games, all with random teams on each side. Not an enormous sample, but more than one or two, at least. : )
I really really like the feel on offense. There have been a wide range of results in the games I've played, from struggling to get a first down to dominating the defense. At the same time, though, I never seem to feel like everything is too easy. Even in games where things are going well, it feels like I have to work for touchdowns.
On defense, I felt at first like things were too hard, but after more games, I think it just really depends on the relative skill levels of your defense and the opposing offense. My first game was played as the Packers vs. the Panthers, and Steven Davis went crazy and ran for something like 260 yards on 30+ carries. It was disheartening, but also pretty nice to see the computer actually running the ball that much. All in all, though, since then things have felt pretty good.
So awesome job on the sliders, except one thing: for some freaky reason, I'm seeing loads and loads of interceptions (and turnovers in general). For example, the last game I played was as the Chiefs vs. the Texans. (Lucky random teams for me! But then, it made up for the horrible joke that was hosting Minnesota as the Falcons. Michael Bennett's first three runs were all 70+ yard touchdowns vs. soft cover 2, hard cover 2, and cover 2 man... oh, the horror.) Predictably enough, I won 34-14. Priest Holmes had 34 rushes for ~150 yards, including running straight up the gut for most of the 4th quarter. Trent Green threw for ~250 yards and 2 touchdowns and also threw 3 interceptions, two of which were into heavy coverage.
On the other hand, though, David Carr had a horrible day. He completed 54% of his passes, but threw 6 interceptions and no touchdowns. Three of those interceptions were by linebackers.
So overall, the Chiefs' D (overall defensive rating: 78) forced 8 turnovers, including 6 interceptions. The Texans' D (overall defensive rating: 76) forced 4 turnovers, including 3 interceptions. And all with the interceptions slider set to zero.
This is admittedly the most turnovers I've seen in a game with these sliders, but that's more than I've ever seen with default All-Pro sliders. Overall, the number of interceptions thrown by the computer seems at best to have stayed the same (~2-3 per game), and at worst to have increased (the game above, another where the Giants' D picked off Mark Brunell 4 times). It's sort of freaking me out. Maybe I should put interceptions on 40 and see what happens.
Any suggestions?