Well, sailing with Wick Smith, he told me 2 things: After tacking, let off the mainsheet just a little (less than a foot!), and then slowly pull it back in. In gybing, even with the spin up, let off the mainsheet again just a little (less that a foot!), and then pull it back in as the boat accelerates. Nigel Pitt taught Wick these tricks, and we all know Nigel knows what he is doing.