#2 02-06-2011, 05:40 PM natep Junior Member Join Date: Dec 2010 Posts: 11 Good question. I believe that any clubs with v grooves are conforming. I play some old Hogan Apex Redlines from 1988, and I believe they have square grooves. I've never been able to determine if they are legal, but I presume not. natep View Public Profile Send a private message to natep Find all posts by natep