I roll with the Bears and use Jarodd's black set as well and I'm not having the problems you are.
1. Not for me I use a vertical passing game and its working great. Marshall and Jeffery use their size on deep balls with me out muscling CBs.
2. Using the left stick I'm hitting almost all of my throws.
3. They get off decently fast but thats to create a realistic pass rush. Makes you have to think quick.
Also the auto subs work for me...
I find Jarodds sliders to be as realistic as it gets if you want a challenge.. Not saying your wrong with your complaints, I just don't see it.