Attach the tape measure to the main halyard and hoist to the maximum, or to the black band around the mast (if available). Measure to the main tack fitting for Lp/P. Ld/E is the length measured from the main tack fitting to the clew connection, or the black band around the boom (if available). Note the shape and size of the slides, slugs, or bolt rope and how they attach to the mast. Note foot details (loose-foot or rope foot), gooseneck and tack details. Also, check the distance from the aft end of the mast to the backstay, so we can determine the amount of roach that is possible.