Not acceptable answer. Cyanoacrylate (super glue) ages quite fast and should be refrigerated to prevent deterioration. Could also be a case of poor prep of shaft and or the vanes they use. I use Blazers and Gorilla Brand super glue (blue top). It holds much better than any bow-brand glue I've tried (much cheaper too) and prep the carbon shafts with wiping down with acetone and extra fine steel wool. The vanes stay put - even when passing though a target. GB glue is fortified with latex so doesn't crack with age like others I've tried.