I have never sailed a P19 but on my I20 I usually use a puff to get more up wind when racing I usually need it. (or deeper when going down wind) when playing I also steer up unless there is some land or a ship in the way. a puff is a short bit of stronger than normal wind. when racing why give it away when playing who wants to yank on the main unles you need the upper body work out. sometimes going from point a to b on a beam reach I have little choice but to play the main sheet and a local expert here told me Sunday that the way to do that was to give it to your crew to work out their bicepts while you focus on the course and watch for wind. since you have had every sugestion I thought one more to complete the set would not hurt.