Probably a bad idea.
At this point, my personal experince with PHRF style ratings is that they do not provide a sufficient handicap for shoal and ,therefore, wing keels. Quite simply, they do not point as well as full keel boats, which creats a big problems on upwind legs by their having to make more tacks and or travel longer distance. Further, they really do not gain anything on downwind legs with ther shorter keels.To exemplify this point for a boat made by Catalina, in the lastest issue of Main Brace, the quarterly for the Catalina 22 National Sailing Association, there is a proposal about changing the regulations for sail size for different weighing boats for national championships. In this proposal, there is also mention of the different keels on the C-22. Using the swing keel as a base, wing keels would be given a 5% advatage, or say a three minute advantage after an hour, and fin keels would be given a 5% disadvantage, or say a three munute disadvantage after an hour.To put this another way, the wing keel on a C-22 is considered 10% slower than a fin keel C-22. Same hull which with a different keel, but six minutes slower after an hour. I am willing to bet the same characteristics would be true on a Capri 22.In essence, I do not think PHRF ratings have yet to properly recognize this difference between shoal or wing keels and full keels. Note that the difference between a swing keel, which is five feet when lowered, and a fin keel is at only 5% at tops and sufficiently insignificant where the fin and swing keels may race as a class together.Further, I beleive that hauling up on a wing keel during a downwind leg, does not produce enough additional speed to be worth the effort. Again, maybe so at some times, but I don't think in all wind conditions.So if you are intending to race and wish to win, I think the wing keel Capri is a poor choice.I currently crew in races on a thirty-foot Seidelman (?) 30T which has a shoal keel. Dispite excellent starts, good sail trim, good tacks, good executions, we have yet to win, and frequently are the last boat to finish. It is very tough for us to go the additional distance required by the shoal keel, not to mention the additional tacks we must make as well.