my rods are 6' and 7' footers, I put the tips into the map storage pockets above the sunvisors, and in the back i have a bunge cord that hooks between the rails of the rear sunroof. there is a metal lip just behind the beauty trim that works well to secure the cord too. That set up keeps them tight to the roof. when i went just to the oh shit handles the rods just bounced all over the place.
i went all over Bass Pro shops looking for hold downs and saw nothing that qualified as the perfect solution, so far my bunge in the sunroof gets it done.