In concept bracket racing is very simple. The person with the smallest total package wins. Total package, meaning the reaction time and how close you run to your dial added together. No breaks outs of course...
Running close to your dial can be done two ways. Being consistent, or being predictable. I prefer consistent. To be consistent you need to do everything the same way every time. Leave at the same boost, shift at the same time, stage the same way, position your feet on the pedals the same way, etc. The truck needs to be consistent as well. Try to set it up so that it's horsepower doesn't change through out the race. I personally try to keep heat in my truck, because I know that in the later rounds of racing I will not be able to get it as cool as I did in the first rounds. When I am staged, I always have the water temp all the way up (190), and the tranny temp is at 140. Every round. Being slightly under fueled will help too. If you have a little extra air, then as things get hotter, and the air thinner, then the power won't fall off as much. Traction...wheel spin is bad...hard to be consistent with wheel spin. Leave at a boost that you know will not spin. Tracks are usually pretty good about prepping the track at the beginning of the race, but as it gets to the final rounds they don't add much VHT, so starting the day at a little lower boost on the launch will pay off later in the day.
Reaction time... It doesn't matter how consistent you run, if your reaction time sucks. The best way to improve is to practice. The better practice trees allow you to program your vehicles reaction times into them. If you have one that doesn't, don't bother, get to the track instead. Reaction times come from a couple of things. How quick your truck reacts and how fast you as a driver react. Reducing things like axle wrap on your truck will help.
To win consistently you will need at least a .070 package or better. I will typically run .040 package or better. Which means running on my dial and cutting an .030 or better light. All it takes is practice...
I hope this helps...
Paul