They do look great and that bodes well for the irons.
i won't rule out buying a set of the irons. I would need stiff flex and the price will have to be reasonable
Kirkland Irons
Par4QC Here is the rub Geezer. You have obviously never been to Costco. Cause that is the place where you buy shit you don't need or often even know you want. I actually think there is a hallucinogenic drug in the churro dust.
I was literally looking at the Costco Callaway short set and it was 500 hundred and change. Ms. Subsonic is like throw that it in the cart and let's roll. I (a degenerate ho) actually pulled the plug. What kind of Twilight Zone stuff is that?
None of that other shit you mention is in a Costco setting. What happens in Costco, stays in Costco.
Regarding the shafts, something you have heard of KBS steel perhaps Recoils in graphite.
The goo is about feel. The thin face and hollow body make them go farther and higher. That’s a fact. Even at my 70 mph swing speed.
My guess is a 90-105g steel shaft 
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.
I’d buy the fuckers. I’d have to hit someone else’s first to confirm they were a good fit. I wouldn’t buy them because they look cool. I’m still loving my pxgs so I think I’m in no danger of randomly being paired with someone who has them to tempt me. I’ve encountered one person with the Kirkland putter and seen no wedges in the wild.
- Edited
Being able to get stock is an issue particularly if they sell as well as the wedges which ended up selling out, something like 150,000 sets sold in first few days.
One would expect as long as supply chains and production goes well that Costco will want these on the shelves for Spring
ode KSig Kool aid
I drink it. It tastes good (pun intended). I love the brand for food products, and as of two rounds ago I also started playing the ball. Assuming they are available, it’s the only ball I plan on using for 2023. I don’t have any notion to buy new irons or wedges, but if I did they would be a serious consideration.
Ksig products are quite good. I used to go to Costco weekly but haven't much since the pandemic started, maybe 2wice a year.
There are a number of Ksig food products we love , also buy their washer fluid and TP.
Haven't ventured into their home building or furniture stuff yet but a friend who redid his cottage bought all his tile , wood flooring and many furniture items from them.
Their OG, 4 piece ball was/is fantastic , one of the best balls I have played. The subsequent versions have not wowed me but are incredibly popular. I buy and re-sell used golf balls and am amazed at how many kirkland balls are in the boxes the ball hawks bring me