I have a 2007 Enzo 230 and just got off the phone with ACME props. He said if you really want to make you Enzo your dream boat that you need to do two things.   1. Take the boat to a body shop and have them create a bubble over the prop like the new centurions have in order to have room to upgrade from a 13 inch prop to a 15 inch prop.   2. Change the gear ratio from 1:46 to a 1:75 (believe those were the numbers he used). This would allow the use of 15 inch prop with a 16 deg pitch.   He claims by doing these two mods that he can put me in a prop that will not only have the low end torque for the weights I am running while surfing, but also i will not loose any top end speed for wakeboarding/Cruising.     Looks like about $1500 to $2000 for the two....was hoping someone had done this and could let me know how it worked for them.   Thanks,   Mike