I have done this with waterproof grease (the blue stuff). I greased the pylon before gluing to give me a good chance of getting it apart if I ever needed too. Tie the bows together with a piece of line. 16's go better with toe in. Make sure the tramp is square before gluing. I usually flip the boat and put it on 4 jack stands. I use west system epoxy with just a little thickener. Should be syrup consistancy. Put it in a squeeze bottle and apply it around the pylon. As it seeps in add more till it sets. Good Luck!