The biggest mistake people make on ts jumps is opening up their shoulders to the boat on the cut. You need to drop your back shoulder so that your shoulders are parallel to the wake. Edge by moving your weight onto your toes with your knees slightly bent, and the handle at your lead hip. Hold that position through the wake - that's the hardest part. Practice it a lot and maybe get some pics or video of your cut so you can figure out what you're doing wrong.
Here is a pic of Sean, who has decent form on his ts jumps: