in my honest opinion, now that i understand the rule, i think its rather stupid!
surely the period should be smaller, i say about 6 months (to allow for winter months)
i think that flying alot in the first 12 months and not flying in the second 12 months = not flying in the first 12 months and flying alot in the seond 12 months. either way there is a 1 year inactivity.
i would think however that pilot should fly about 1 hour every 2 months, just to keep evrything fresh in the mind.
point is, the rule is stupid and the period should be made shorter