Also note that with a straight traveler in-line with the rear beam, the action of releasing the traveler down the beam actually sheets the mainsail in tighter.

1) set diamond wire tension for the conditions anticipated that day
2) upwind sailing, work the downhaul to control power in gusts combined with some light helm corrections.
3) upwind sailing, when the downhaul is no longer enough to control the power in the boat, the crew needs to set the downhaul in a moderate to upper position and start working the mainsheet in and out slightly...again in conjunction with some light helm correction.
4) when it's getting really sporty upwind, and the crew is having to really saw the main in and out deeply, it's time to drop the traveler an inch or two and leave it there. Continue working the mainsail and helm.