you might be on to something here dude. I played last night against the Eagles in preseason,and using cpu qba at 25 along with IG at 75 and I plugged in your settings for user pass cov and reaction....Sanchez actually went deep on me 3 times.
I was only able to sack him twice as well,both on well timed blitzes and this is with cpbl at 0. He finished the game like 10-19 for 145 yards and 9.9 yards per pass attempt and 1 int.
I'm starting my regular season games tonight,but very very early it does seem a bit more promising as before I was very rarely if at all seeing a deep pass.