Even though I own a 06 X-30, I have not skied behind it. The wake looks a little on the big side at 28-34mph. But the wake plate does make a noticable difference in mellowing it out at faster speeds. If you are going to do alot skiing I would not recomend the X-30. From a wakeboarding standpoint I love the boat. The wake is on the steeper side (which I like) but it can become more mellow by adjusting te wake plate. Either way you won't go wrong, the 06 X-30 and the LSV 23 are great boats. If you do more sking than wakeboardeing check out the Malibu 23 Xti.
Here's a pic of the wake 23.5mph