I searched numerous times today and couldn't find what I needed exactly. I have a question about the 2.72 disk and ring. Is the ring supposed to fit snuggly around the disk when installed? I have 4 disks and 3 rings and the other two disks fit right inside the rings. The 2.72 disk has a 1/4 inch or so of space on the sides when its inside the ring. Any help would be appreciated. Thanks guys......