As an example, swimming helps against Executioner drowning. I expect this benefit extends beyond 100 ranks of training and would be of assistance if you wear heavier armor/are encumbered while attempting to break free. I have 101 ranks in swimming (max for a wizard) and the difference between this and 50-70 ranks with regarding to avoiding or breaking free from executioner drowning is night and day.
I expect there are similar situations where more climbing would come in handy.
-- Robert
