Subsonic You have obviously never been to Costco.
There are myriad reasons people like me do not go in those places. 800+ credit rating, 100K in CC limits (if any limits), older.... bordering on idiocy (not senility), and they have things no one could possibly ever want, yet need to buy. You are a much younger American, but know this language I type here.
Subsonic Regarding the shafts, something you have heard of KBS steel perhaps Recoils in graphite.
Both of which are my choices also. But I seriously doubt Costco is going to go that route. Their shaft in the wedges are some kind of 'wedge flex' True Temper. Look for similar in the irons when they come out.
