Trying to figure out what prop to run on my xpress! It came with a 25p powertech vmx3 no matter if the boat was fully loaded or empty couldn't get it to turn over 5300 rpm running 63-64! I tried a 25p tempest plus brought it up to about 5500! Currently have a 23p tempest on it now doing a lot better 6100 rpms at 67mph! Thinking about trying a 4 blade 24 pitch! Trying to hit that 70 mph! Any input would help! Boat had a 10" atlas hydraulic jackplate also! Thank!