No. 3 Figure out what is maximum mast bend, and then strive to attain it in most conditions. Maximum bend is the point at which overbend wrinkles (speed wrinkles, inversion wrinkles, etc.) develop in the lower quarter to lower third of the mainsail. Depending on the boat, you can bend the mast with mainsheet tension, vang tension, backstay tension, rig tension, mast blocks, spreader angle or a combination of all of the above.