I have a used uni progression 170. I am noticing that the whole wing is in good shape, very smooth and new finish all over except on the ends of both wing tips. You can see some top layer wear on the last 3-4 inches of the leading edges and can feel that this surface is not as smooth/slick as the rest of the Foil. Is this having any effect on performance? If so what is the solution? Can post pics later.
Wet sand with 600 grit, Iād do the whole wing