Walterjn Never used either, but have has them in my hands. I'd guess that the Diamana is a softer shaft, without looking it up.
I use the Tensei Blue CK in my hybrids and they seem stiff per flex.
The grandson uses the AV Blue in his drivers, but not sure if the Raw is something different.
Not much help here tonight. 😄
If you are going to buy new, buy local. @LogicalOne has some damn fine shafts!!