No-one has talked about the most important factor in doing dog form - 1st sectional time and racing style.
The "fastest" dog does not always win the race. Many times the "fastest" dog does not get into the race because of what happens in the run to the first turn. I consistenly see dogs at Angle Park that in a solo trial would break 29.8 seconds yet get beaten in a race in 30.25sec so you are barking up the wrong tree if you think the dog with the best speed rating is the logical winner.