We keep close to the line, if it looks like we are going to be early we start doing hard S turns which is pull the tiller
hard and bring the boat down 30-40 degree's and then push back up
hard moving the boat up 60-80 degree's and then finally pull back moving down again 30-40 degree's (provided you have room). This puts you back on course and kills alot of speed and with luffing your sails it might save you from a early start