The Swan 1 Reborn uses the mold of the original Westside Swan that was discontinued, but that has now been brought back. This Swan version is more understable than the Swan 2 that has been around for the last few years. This disc is amazingly straight for any arm speed right out of the box. This is a great putter for long straight putts. BT Soft plastic:The BT Soft plastic was designed to feel good in your hand. Using a blend of rubbers and polymers have given it a smooth texture and a great grip. Rain, snow, or shine BT soft will provide that consistent release. Molded in approach discs and putters. BT Soft feels good on any day and holds great lines. Try other BT plastics also for similar grips with a stiffer feel.