Wait, so this only affects offline leagues?
Is the belief that changing sliders inside of the league does absolutely nothing or just doesn't have the desired effect? The reason I ask is because I tested out starting a brand new league with your sliders imported the proper way... played a few drives... then backed out and changed a few sliders inside of the league (USER QBA to 0, CPU QBA to 100, CPU & USER FUMBLES/INT to 100, CPU & USER TACKLING to 0) and the game was quite clearly changed (I have the video on twitch if you want to see). I couldn't throw the ball with Wilson to save my life... and (oddly enough) I was actually able to get some decent kick returns for once. I'm not saying, by any means, that this is the preferred method... but changing the sliders inside of the league (instead of importing) definitely had an effect on my game.