It may be that you are putting the trailer in too deep (not sure if anyone has said this), especially if your Xstar has the SuperFly bow. I have an X45 and it took me a little while to get used to the trailer position coming from a traditional bow shape. I found that if I put my nerves aside and leave the trailer a bit further out of the water than I would have for prior boats, I can power straight up the trailer without an issue. The bunks guide me right in as they should.
When I first started out, before I realized my error, I was finding that the nose of the bow wasn't clearing the roller.
Just my 2 cents,