I don't have a centre column. There's just this bolt underneath. Looks like I need something to replace the bolt with that has a hook on it.
Hi, Mike....I have the 3541XLS, but essentially the same tripod.
I got the center column. What is nice is that you can use it or not. If you don't want to use the column, that it out and use the bolt in the bottom to attach the ballhead mount. That bolt has a spring loaded hook, which disappears when not needed....of course, it is available with and without the column.
Kind of an enpensive solution to you hook dilemma, but, even with the height of this tripods, I do find many uses for the column.
Happy new year....John