I doubt the slider works, but I wouldnt know Ive never turned the thing down. With my cpu acc at 50 I still rarely give up a 300 yard game. They make a few mistakes per game, my D makes a couple of plays, thats the NFL now. Sure completion percentage is a little high, but big deal its one stat. Jacking up the sliders will affect a lot more than just that.
Cousins is a great example of what's wrong with Madden; IRL Cousins has decent completion %, but generally poor accuracy. Those stats don't take into account the ability of his receivers and, more important, the lost yards due to his throws often being poorly placed.
IRL on a hitch, with nobody being within 5 yards Buy Madden NFL 17 Coins of DeSean (thanks to his threat to burn the top), Cousins will still throw it low, creating a tough catch opportunity for DeSean despite the space provided by the DB. He gets the completion and the 8 yards, but that's poor accuracy.
IRL Cousins is the type to hit the back shoulder on a slant/drag - limiting the RAC potential. Stats may show an accurate QB, but his ball placement is often poor.
Poor throws happen plenty on madden when you use the lead passing mechanic. The problem is people dont use it, they just hit the button.
Those types of throws are what is rare in Madden, made more prevalent thanks to poor momentum representation. When they do happen (a high throw to the flat, a throw behind the slant, etc.), the receiver can not only catch it, but keep rolling without a hiccup, misrepresenting the effect poor ball placement aka inaccuracies actually have. The only way they miss catches due to ball pavement is with the drops open catches trait, or if they get hit, and both are poorly represented in the game.
I think that's what most people are looking for Buy Madden 17 Coins with lower QB Accuracy sliders, not more blatant overthrows, not more dropped receptions in the receivers hands...represent ball placement better when the slider is lowered.
They definitely work, st least in franchise. I was getting killed in like 5 games, tweaked the sliders and now it's too easy in the past three games so adjusting again. The problem though is they don't seem predictable, they vary in how they work and I'm not even sure in some of them which way to move the slider.