Installed a 10" HydroDynamic Jack Plate on my XB21. This JP was made by Owen Manufacturing using Tim Powell and Carte's Custom Design criteria. Results: Improved Hole Shot/ no wedges, drives much better, tracks straighter, holds bow up when crossing waves, LU/Prop Shaft level with running pad with more than 90 percent of the motor plate within the slides, very smooth operation...so glad to be rid of that CMC. Only ran 75mph in 1' to 1.5' waves mixed with boat traffic waves, based on the improved drive experienced in those conditions I anticipate much easier handling at higher speeds. More info coming...