That seams to be typical, mine dont really start to lift until the 40-45mph mark, seams to have to do with packing air under the hull, but hang onto your hat, cause 45 up to 67mph happens real fast, Once you start packing air. I am running a 24 tempest on a Pro xs 175 and lift is not a problem. However I couldnt get lift with a 24 fury. I have a standard Sabre with deck extension.