I have used gorilla glue but since if foams and expands I always clamped it. Do you think the blue board would need clamping to keep it from foaming an expansion gap? Moisture activates gorilla glue so I always wet the surfaces to be glued to give it a quick start.

I have been testing ropes to see which on can wick water the best and this rope I bought at the farm store on a roll for the sail boats seems to be the best. It is a very limp nylon that wicks water up 8" to 10" with 4" submersed in the water.