Originally Posted by glenn
You know your packing it right if you can get it to fully deploy every throw. You should practice throwing until you can put it in a hoola hoop at any distance up to 75' every time and after re-packing each throw you should have it down.
Glenn's spot on. Every time you practice a toss, you get to practice restuffing it. This is something you want to be able to do quickly and competently as you may need to throw it again soon and a loose rope in your boat is a hazard. If you need to immediately throw the rope, fill the empty bag up with water for weight.
Since a swimmer is a moving target, practice on dry land by having a friend walk across your path about 60 feet from you so you can learn to lead the swimmer with your throws. Ideally you want the rope to land in the water a couple of feet ahead of the swimmer. On the surface, the rope will move slower than the swimmer and the current will then carry the swimmer into the rope if they don't see and grasp it.
And don't throw the bag unless you need to. A loose rope in the water is a hazard too.
Be safe out there,