Do not expect an "official" response from a Titleist rep on this question as Titleist only sells complete irons and not components for home installation. Anyone doing their own shaft installations would not be under warranty for problems that occur. If you are already beyond the point where you have T200 heads removed from shafts, suggest you talk with a certified repair shop for the best advise. Most of us here are not certified club repair specialists. I did stay at a Holiday Inn Express before. :)

Thanks. I appreciate your comment. Demo/Fitting resulting in TT DG AMT black and I’m not as happy as I thought I’d be. Haven’t done anything yet and will spend some more range time before a final conclusion between the DG AMT Black and the Modus 120 I’ve used for 5 years.

I have reshafted Titleist irons from the 962 series to the latest T100s irons. Always use collared ferrules. Much much less chance of a shaft snapping (especially if the shaft is graphite) at the top of the hosel. I've not reshafted the T200 but am almost certain the original ferrules are collared.