Originally Posted by JBlumhorst
+1. Removing and Restitching the sacrificial edge cover will not compromise the dacron structurally in any perceptible way.
Independent Rep. for a global sail loft
Your kidding right.
Dacron without a row of extra needle holes will be stronger than dacron with a extra row of holes, it is pretty simple. (and yes the sewing machine
needle does make holes in the fabric).
Sure its going to be fine for many years and maybe another UV replacement but I have done a a lot of repairs
due to stitching holes left over from UV replacement on a lot of sails
. Any horizontal rows of holes just above the clew patch or below the head
patch where the UV cover was joined are susceptible to tearing. The sail vertical tearing inside the UV cover especially if it is a high aspect dacron and if the new cover wasn't made slightly wider than the old cover. Worse if the cover is sewn or re-sewn with 3 step zig zag as more holes are created.