Thanks, but I understood you the first time regarding how shared lift solves the CE migration problem when flying a spi. What I was asking was why an alternative approach wouldn't work just as well if not better. So, without raking the mast, when flying a spi, why not just move the daggerboard forward to a second daggerboard well to match the new CE? And when taking the spi down, why not just move it back to a more aft position? Although it would be an extra step during changing from upwind to downwind, it seems like it would give a balanced helm in all conditions just as well as the shared lift approach. I'm not a boat designer with your years of experience; I'm just trying to understand why this alternative approach is not used.
