I voted 'don't care'. I know what shaft is in my putter, but I've never considered reshafting a putter, and the shaft wouldn't have much influence on my decision to buy or not buy a putter. I won't say I entirely discount the idea that the tech in a putter shaft could be helpful, but I'm not entirely 100% on board with it either. My mind isn't closed to the idea, but I'd have to have the opportunity to try it first-hand to make me a true believer.
I voted for don’t care. I have a stroke lab shaft now and I honestly couldn’t tell the difference between that and the shaft on Alyssa’s OG Ping Anser. I think the putter head (shape) has much more of an affect on putting (I’m probably wrong here, but that’s where I land).
Putter shafts don’t register with me. I’d never swap out an existing but if in the market for a new putter and one with an upgraded shaft piques my interest, I’d give it a go. But that’d be a curiosity driven exercise in the moment as I have no tangible desire.
Not sure how much I can say, but I thinks you will get your wish in 2022....
For me, I have tried and had great success with a couple different shaft options. Stroke lab is awesome, really liked the Kinetexx and Accra options, still have them, but am rolling it pretty well with a pretty stock steel shaft.
I would really like to get one of them back in my center shafted Indy, but it didn't work out so good the first time so not sure how to make it work this time.
Back in the "dark ages", aka before Stroke Lab etc., I considered a stepless shaft an upgrade. Now, after reading reviews here on THP I'm intrigued by the potential benefits of the aftermarket offerings.