The TM-4 design is our latest all-purpose mainsail designed in conjunction with the fleets' top sailors for the stiffer masts in the XOD class, designed with radial head and clew sections to handle the corner loads better, combined with a cross-cut mid section to deal with the variety of mast bends through the wind conditions. Cut using a combination of Contender RSQ6.05 in the radial section and Contender PK5.52 in the mid section. A variety of luff and foot slides are available to finish the sail as you require.