Centerboard position - keel/centerboard Tartan 37 upwind
I recently returned to sailing after a rather long hiatus. I am sailing on a friend's Tartan 37. We have had some discussion about the proper position of the centerboard while sailing upwind in relatively light wind. The boat has a shallow keel along with the centerboard. Should it be all the way down on the beat, up slightly, or up all the way to reduce drag?