I think I'm going to order some of that Gorilla stuff and give it a go. Kate, the lady I bought the tonneau from, has a black gen 6 vert, UK model, which has exactly the same problem as mine. She's taped it all up with duct tape, which holds it in place and stops the water getting in, but looks awful and is rerally only a stopgap. Also she has the same problem as I do, which is browny-yellow spots of what looks like mould on a half a dozen places on the hood fabric. I'm going to have to find something which will kill them off... I've bought an Auto Glym fabric hood-cleaning kit, see if that will do the trick.