I agree. The hoops on the Artist model were a triple flange "type", but not your typical modern day triple flange style.I though double flange has one bend or two angles. Like an "L". Still a stick chopper top edge.The triple flange "type" I was talking about still has the stick chopper top edge, but there are two bends or three angles on the hoop. The additional angle wraps around the flesh hoop.Here is an example:http://www.vintagedrumguide.com/images/other_stuff/rich_k/fulldr3.jpg-Tim
No, those are considered double flanged. Two bends in the metal. WFL was the first to use triple flanged hoops.