The specifications listed in this website for an O'Day 25 are confusing to me. For example, it lists the displacement on the CB model to be 4807 lbs but only 4762 for the full keel. Disp of 4807 seems high for a CB boat as does the ballast listed at 1770 (much higher than reported for a Catalina 25 CB). Can anyone confirm these specifications or know where I might find valid ones? I need to get my 25 a PHRF rating. Thanks.