I would strongly recommend the X35 for LW and surfing. It is a heavier boat with more room on board for people and weight. Regardless of beging a beginner or an expert, you will want the boat with maximum versatility. Surfing is a great sport for virtually everyone.
We are also on LW and decided to go with the X45 to make sure we had a big heavy boat for those rough weekend days in the summer. Now that we have spent a few seasons with the boat, we regularly load it with additional ballast in the rear lockers. I think you will be very happy with the 35 (we strongly considered) and will be able to shape a great wake.
If interested in a great wakesurf board, drop us a line at Day1
'06 8.1L X-45