As of right now, not really on the tip slap. I haven’t took them on a long enough road trip to see exactly how they are going to do as far as tips bouncing. The short trip from my buddies shop to my house, I looked in the mirror more than I looked out the windshield watching the rod tips. The movement was pretty mild, but that was no faster than 55-60 mph and maybe 4-5 miles. I’m going to keep an eye on them, if it gets to excessive, I will build a 3rd holder and put it at the very back of the boat for more tip support. Then move the other one a little closer to the middle. The rods are 16ft jenkos. They have good backbone so I’m not worried about anything the way it’s set up now except the tips. I wondered about putting a small bungee around the tips of the rods to keep them from beating each other too hard just for road transport. Then taking that bungee off when I got to the water to launch the boat.