I could never understand why Pearson never wanted to run the whole season. Beside keeping Petty short of his milestones it would have een interesting to see what changes would have been.
Money, Pearson likely made more money just hitting the "bigger" paying races at the time, then chasing around the country for points. Remember there use to be a lot of dirt tracks, short tracks that had Grand National races that really didn't pay much. A lot of quality teams didn't run the entire schedule until the later 1970's - 1980's when, Winston, TV money came in and the schedule was cut down.