My merino and other woolen garments are always stored together in either a closed chest of drawers or large MEC zipper duffles. I do not use the SW tops for anything except hunting as that is what I bought them for in OD green and they are mixed with all my other merino during storage. Yet, NONE of my other and much more often worn merino or other woolens IN THE SAME storage developed ANY holes. That is why I think that the SW stuff is defective in some aspect of manufacture.

IF, moths had managed to get into my storage, unlikely, but anything is possible, then, I think that they would have chowed down on at least some of my other merino as well as the SW. So, I conclude that SW merino is not as good as IB and it stretchs like crazy, which my IB does not.

Like you, I care not what others buy, but, I post this here to give help to anyone seeking merino garments as this is my experience.