I think they were talking more about sheets falling through the much larger gaps between the traditional tramps and hulls or beams(6"?) like the side lacing setups we see now on the A cats.

A cats only have one sheet and it's usually in their hands all the time, unlike the spinnaker sheets and halyard of spin cats (newer Tornados).

My very old Prindle tramp has a large rip across the rear, just forward of the aft beam, and the mainsheet LOVES to slide out the back and drag in the water when it's blowing!

As I was thinking more about your net setup, I realized it could be rough on my dog's paws if/when I take him out with me... I'm thinking maybe a smaller opening type netting, I'll keep looking.

My Blue Healer Loves the water, and loves sailing. Now I just have to train him to bring me a beer!

http://www.youtube.com/watch?v=44Ds6Z2QG3k