Replace the no-stretch line with line of much lower quality that does stretch but does so elasticly.



With this the trampoline is fine.



Although I would run the bungees, which hold up the board, right underneath the trampoline to the other side. And not just from the front of the board to the eyes in the trampoline and than back the the back of the same board.



Why I found that it is hard to raise the board and lower it when you're standing on the trampoline and thus put extra force on the lines (bungees) which jam the the boards into place.



Wouter