Anyone who has ever mounted a foil will know the problem: the sliding blocks in the double rail shift and hitting the thread cleanly is sometimes quite a fiddle. And when the flags are flapping in the wind and your mates are out on the water at the same time, the patience of wingsurfers, pump foilers and windsurf foilers is often frighteningly short.
One solution could be the "Grab Nutz", sliding blocks that can be fixed in place in the box using a small grub screw.
Installation is quite simple: once you have found your favourite position for the foil, carefully loosen the screws, remove the foil and fix the sliding blocks in place using the small grub screw. In this way, the right foil position is "memorised" for the next use - and you save yourself the annoying fiddling in future.
This idea is not entirely new, unlike some other manufacturers the Grab Nutz are made of stainless steel, which, according to the manufacturer, should guarantee the best possible durability.
A set of 4 groove stones costs 29 euros,Info and order HERE