All great suggestions. Thanks!

As Paul said - switching to the Glaser main made a difference. I have now modded the Performance main to work the same. It no longer holds the rotating hook off to the side.

On Sunday we had to use the moving the halyard to the other side of the hook trick as well.

I agree with JW in regards to keeping the track clean and lubed. Probably worth putting McLube on the actual bolt rope as well.

Cheers,
Karl