I am not leary of the technology really. I trust them more than SS actually because you can really see where the abrasion is and whether they need to be replaced. SS swages tend to hide where the badness is. I think mine are 3-4ish years old. I have the SS shrouds in my garage which is 1/4inch 1/19 I believe with a breaking strength of 7000 (looking at 1/4 SS 1x19 on APS, 5/16 gets up to 12000) and 3/8 dux has a breaking strength of 26000. (This doesn't seem right to me, now that I am looking at it though. I seem to remember looking at it before and there was a difference but not by that much)