Good plan. I'm assuming that works well on your boat; which is the point of the entire discussion! On BlueJ the main trimmer is probably the most active crewmember upwind. The sheet is never out of their hand, as that are constantly trimming. During the bearoff at the mark, they have to be easing or the boat will not turn. Its the one role on our boat that doesn't get much overloading.In my (limited) experience, we usually have the mainsheet trimmer trim the jib while the jib trimmer gets his lines set up. Mainsheet guy also furls the jib when the kite is about 1/2 way up.