What is the general concensus regarding upwind mast rotation for those using a pre-bent mast (i.e. tensioned diamond wires). My understanding of the theory suggests that I only need to rotate my mast enough to present the leading edge cleanly to the apparent wind (over-rotated on the downwind leg if not using spi), yet a fair number of the photos I've looked at recently show cats with the mast really cranked around, even while beating. What are your thoughts?