The changes to make the epic 22 to a X22 are:
x22 1600 pounds total and 9 people limit
E22 same
Wakeboard tower, wake plate, Tracking fin, Prop . The capacity sticker I don't remember any changes.
Personally when the boats were set up for wakeboarding at camps and by the pro's, the boats had exceeded the limits. Don't make a mistake and have the boat not handle safely. The loading of the boat is your responsibility. Make it a fun day.