Great thread. I have a 36-1 square butt with moon clip conversion. The grip selection is much more limited than for round butts. I have two types of Pachmyr rubber grips, the Gripper model and one slightly smaller. Both are nice, but those Altamont's for the square butt j frame look pretty inviting. Did not know about Altamont before seeing this thread, always get good info on this forum.