Grand Max is one of the strongest fluorocarbons around. It is practically invisible in water, they sink readily without treatment at about 3 times the speed of nylon. The abrasion resistance and invisibility of Grand Max ensures that fish are neither "spooked " nor lost.
Grand Max is slightly softer than Riverge and has a higher breaking strain for diameter. It has been extensively tested and using standard knots found to knot easily and be entirely dependable.