<P style="MARGIN: 0px">Jim,</P> <P style="MARGIN: 0px">Are you asking about length behind dipsies, line out to jets or flat line trolling? If you are asking about jets. I run minimum 100' from rod tip to jet with a 5' leader to the spoon or crank bait. Leader is 30 lb spider wire with a good ball bearing swivel. If flat line trolling crank baits off boards, I run 10 lb stren. Inside board at 75' middle board at 100' and outside board at 125'. On my dipsies I run a 5' leader of 30 lb spider wire, same as the jets. The rod has 20 lb stren. Length out is determined by the depth the active fish are at. Lure Jensen has a chart on the back of the packaging for length out to reach the desired depth on each setting. I laminated one and keep it handy in the boat. If I am fishing for steelhead, I make sure to have a 6" snubber attached to the dipsies. Hope this helps!</P>