There is another one that's off, but only by a hair. I can chalk that one up to the cover shifted a little while installing the rest of them. Both where it is and where it should be are in the same seam, so there was no benefit to shifting it over.Maybe that anchor is correct and all of the rest are off?
I think that's what bothers me most by the skimmer. I would have been totally fine with that one strap being longer to hit the next available seam. Instead they yanked it to the side so not only did it look unappealing, but it puts a undue amount of stress on that part of the cover. If it was going to look off anyway, why on the good green earth wouldn't they have done it in a way that didn't hurt ?