Yea, sounds like a plan. Be careful with that though. Raising break tackle will affect receivers and kick returners and you may be hitting your head against the wall when a receiver breaks 4 tackles in the open field for a touch down
Try raising run blocking and setting reaction time to 0. Seriously. When your playing the run, as a user, your reaction time is going to be 10 times better than the cpu. The same does NOT go for passing though. As you can only control one corner at a time. The CPU will carve you up.