I've got a DD Hammock with the supplied webbing attached, im having trouble's with it sagging a lot, I've heard some say it does this for the first few times, but I've used it a good few times now and it sags a lot everytime, probably because im a heavy chap, 17 stone Anyway, I just received 100 foot of 7mm rope and was thinking of maybe giving that a try instead of the webbing. I think my normal 4mm paracord can supposedly hold 250KG so im guessing the 7mm stuff will be more than sufficient Anyone else using rope instead of webbing/straps? If so what mm and good results?