I have always played rifles, normal, flighted and PX. Recently got some jdm with Nippon 950 in S flex. I normally like to play rifles in the 5.5 built region. The Nippons are very very very smooth! The light weight has and is taking some getting used too for me but they are a quality shaft with a smoothness that is hard to describe.
I would suggest to order and try one first perhaps not the 950 as I would have liked to have gotten the 1150's to have a closer weight to what I was used too. The 950's are fantastic for me from PW to 7 iron but 6 and up are causing me erratic distance and dispersion problems. Also the flight is too high if there is any wind blowing for these longer irons. I reshafted 6 and up with PX 5.5 soft stepped once and it is much better.
I also have some TC r3 coming and will try these out as well to see what all the fuss is about.
I am hoping that they are smooth like the Nippons, have the flight of the PX and the tight dispersion as well but without the harshness. Maybe the answer will be Nippons in 1150 for me. They certainly are a very nice feeling shaft whatever the term 'feel' actually means?