Wouldn't do it. Running the core still in the rod will wear it out. Have done it before, but decided I was pushing my luck and quit. You can splice mono between the segments and attach a board, but you will have sag in the line. I personally don't run core or copper down the shoot because I worry about a fish getting into it. Maybe it is just me, but the extra line out is not worth the potential disaster that is bound to come my way.