This is completely dependent on the conditions. The sail trim should be enough to encourage the boat onto the upwind angle, but not so much so that the boat loses control and spins out while rounding the mark. In an ideal world, the load is enough that the helmsman can turn upwind with control and land just inside of the upwind angle. From there they can press slightly on the jib to build speed, without giving up precious gauge, to maintain a tight lane. Rudder load will dictate this, so when in doubt, slightly more load is better then less.