C30 And C15 SDM Wave Slalom 2 Piece Masts 460 SDM 30% carbon Neil Pryde Constant Curve Slalom Race Wave SDM 460 15% Carbon TPS Firestick Mast Wave Slalom Race. 400 SDM Carbon 45% 2 piece 400cm Tushingham Wave Freeride Freestyle Mast IMCS 19 All masts are constant curve, 2 piece and SDM.