Ive toyed around with countless weight setups on the X1 (Not enought weight was never an issue) and the wake was never that good. Definitly surfable with the right board, but a very small pocket.
The X1 is designed off the old ProStar 205 hull which was a direct drive ski boat. The hull was designed with 3 event skiing in mind, not wakesurfing or wakeboarding. Its almost a fluke that with a bunch of weight and a V-drive it is an amazing wakeboarding boat. (See my profile picture). But on the right side of the boat, I have never been able to get a good surf wake. Freeboard also becomes an issue with extra weight.