I had the sliding track mounted items on my Lund (lund track system)… worked fine, but they left most of the long rod ends sticking into the boat like the scotty holders on a rail would, I expect. Get two guys in there, and it just took too much space. Got lucky, found a used setup… traxtech like Mojo mentioned. The tracks, and adjustable/ removable tubes. I really like them. All that stuff is now over the edge of the boat, and they are much better for use in regular trolling rods. Plus, when pulling heavier stuff on Lake MI… it just seems much more reliable. Always worried about the other components.
I still use the other for holding light pan fishing rods and such at times when rods don’t have the long rod butts, but love the new track system. Only mod I still want to do, is make a padded insert to slide into the tracking when I am not trolling. Just for sitting on the side of the boat, or whatever casual use.