Modern sailboarding equipment is the end product of some 45+ years of incremental evolution and refinement, following Drake and Schweitzer’s remarkable breakthrough invention of (ta da, drum roll, please) the “Windsurfer".

As inspired as that "Mark 1" version was, competition from the open marketplace brought massive improvements to the original design. There have been giant leaps forward for end-user convenience. Consider item such as the two-piece mast, footstraps, retractable centreboard, the telescopic boom, the clamp-on boom, sail cambers, harnesses and the lighter, stronger and more durable materials used in the construction of generally everything - epoxy, carbon, aluminium, kevlar and the like.
You'd have to think that all developments for convenience were done ages ago, and any future changes would be only be of a cosmetic nature.
Well, maybe not. Here are five modifications I would like manufacturers to incorporate, none of which are radical.
Suggestion: Mould a graduated scale into the plastic innards (the bits that overlap, and Velcro together) of footstraps.
Justification: Setting footstrap width is a bit hit-and-miss. Having a scale would make it simple to consistently set or adjust the width across the four straps.
Suggestion: Put a serial number on every sail.
Justification: Boards have serial numbers. A sail serial number would assist identification, should the sail be misappropriated (aka stolen).

A serial number would enable the identification of the model / year of manufacture.
Suggestion: Mark the luff of a sail at the position where the mast pieces join.
Justification: Having worked the mast into the luff, it's vital, before downhauling, to check that the mast pieces are still properly seated. The mark indicates where to check. (I believe that some sail manufacturers
do provide such a mark. My new Naish sail doesn't have such a mark. Nor did its predecessor, also a Naish. Hmmm. Maybe, I've been too loyal to the brand.)
Suggestion: Provide a tie-on point at the head of a sail, either as a small webbing loop, a grommet or a “D” ring.
Justification: To be used for suspending sails for drying. "Turban top" sails are OK. With non-turban top sails, I put a grommet in the sail head.
Suggestion: Provide better drain holes for booms.
Justification: Water is slow to drain out of booms. Sand can accumulate inside the tubes. I have drilled drain holes in the head and the end-caps.
That’s my wish list. What else? Are the manufacturers listening?