In my short limited time as a Carp fisherman I have never used leadcore but I now intend to. I'm aware of all the safety issues, so no problem there. However, I have got myself a bit confused with the theory of how it works. The weight of the leadcore pins the line to the bottom, however after you have cast your line out and then tensioned the line up etc. does this not raise the leadcore off the bottom? Is the weight of the leadcore sufficient that it will create enough resistance when you tighten up to prevent raising it? Thanx.