I don't know that centerboard up or down would make much difference. Seems to me that if there's a current, CB down there's more surface area to be pushed. additionally, I don't think it does you much good because you're not making enough forward speed for it to help you track. my EZ Steer linkage does more to help me dock than the CB ever could. I also learned the first time I docked at my marina that there is framing below the transient slips and that my CB will ride up over it, then drop, making it impossible to back out without raising the CB.