I found all the typical problems, and solved most of them, but still had a leak somewhere where the two halves of hull come together. Previous owner said his buddies got drunk and hit each other at a 45 degree angle at high speed, which would explain my problem. VTS didn't work but the button did, so I wired one up and if I am doing hard riding, about every 20 minutes I hit the button for a few seconds.
On smooth water, not jumping waves or submarining the ski, I seldom use it at all.
I live south of Houston in Angleton riding the boat in Lake Houston mostly, and the XP off the beach in Surfside.