Ease the traveler as much as you need to keep the boat on its feet. Watch the lee bow and ease accordingly. If it is not to windy there is no problem at sailing centered. you may start to fly a hull (and probably like it! ;-) If you are trying to go fast you start to ease the sheet to twist off the main and hike/trap the boat flat.

Oh yeah, as the wind increases, get in the back of the bus. It is not uncommon to be trapped out on the back of the hull to keep the bows up.

I would say that there is no need to put it all the way out unless it is blowing the squirrels outta the trees and you are unable to trap.

This being said remember to also move your jib traveler out along with the main to keep the slot open.

Practice and you will begin to see how hard you can drive the boat.