Unfortunately for me I just found out today that my tripod adapter to my old gitzo that has a 6 inch disk does not work. I am missing about a 1/4 inch to a clear the pole and align the top 3/8 screw. Please refer to the picture included. This tripod is old and I do not mind drilling a portion of the disk to help clear the path. Do you any other suggestion? (I cannot align the top with the 3/8 screw as the pole is already touching the disk of the tripod.