I can give you an example of how it has helped me. When passing over the middle people have complained about "Super LBs" jumping up and swatting the ball. When I hit up on the stick, it lofts the ball and drops it in over the coverage.
On a hitch route, I pull down on the stick and the ball is thrown at the WRs feet and isn't open for an INT or swat. It's worked wonders for me in just a half. You still have to make the right reads and find the passing windows. Obviously, I use left and right to lead the receiver which also helps if you see a LB or safety ready to blow up your receiver. You can lead him or throw behind him so that he makes the catch while falling to the ground and is susceptible to a drop after a monster hit.
I don't know what you do for each pass play, but, I always identify the coverage (i.e. Cover 1, Cover 2, Cover 3, Cover 4, Man, Cover 6, etc.) After I do that, I identify, based off the routes who is likely to be open based off the defense and select that player as my #1 read - regardless of what the play art says. Then, if I don't like any routes against that defense, I hot route a player to a favorable route or just call TO and pick a new play.