scotts33 I don't know the last time I used a driver with the shaft that came in it. If I buy a complete driver, I started pulling the shaft without ever trying it, years ago. I did try only a couple through the years, just because they were something new in the (OEM club) market that same year. And, I found them to be junk, esp. that damned $4.23 Project X crap that Cobra and Callaway use. I mentioned the ReAx shaft above in jest, but in fact, it was a really nice shaft for a lot of players.
I have plenty of HOF or LogicalOne shafts, ones that I know will work/how they work for me, so I just pull the adapter if there is one and have clubs that work well.
I also change out my FW/hybrid clubs shafts.
I've got brand new pulls from OEM clubs that I've had hanging around for years. Finally started just throwing them away.