Take another look at rule 44.1, "Taking a Penalty", specifically rule 44.1(b), which says "if the boat... despite taking a penalty, gained a significant advantage in the race or series by her breach her penalty shall be to retire". If the advantage you get by breaking rule 10 "On Opposite Tacks" is insignificant, why do it? If it is significant, then the turns don't exonerate you - you must retire.

Also, reread rule 44.2 "One-Turn and Two-Turns Penalties". It starts "After getting well clear of other boats as soon after the incident as possible...". You cannot wait until it is convenient to take a one or two-turn penalty. You must do it right away.

And, Jake is right, the penalty for a breach of a rule of Part 2 "When Boats Meet" is usually two turns, not one. It may be customary for the SI's to change this penalty to one turn for catamarans, but if they don't, even cats must do two.

I hope that helps,
Eric