We did have several PGA Tour players in the AP1's so it is a matter of preference as far as playability.  On the AP2's, yes, you can put the NS pro shaft in them.  I would recommend getting fitted for your irons and trying the shaft out as we have…

I agree with a little of both. I think though with your swing speed tat the x shaft is not a good fit. you might notice you pull or duck hook your shots since the head will remain closed or get closed a little quick for your hands