Here in The Great Lakes, we use a lot of wire rods and 1lb balls. You can get down to 100ft easy. Also which is gaining a lot of popularity is either fireline dipseys or wire dipseys. You can easily get to 100ft with wire dipseys. It may not seem the most sporting way of catching fish but wire can be the hottest thing in the boat. You can check out www.glangler.com there is all sorts of info on wire. I hope this helps a bit.