I bought a pair of Sikayos from 2011 - used the smaller 6.5" but never used the 9" and I'm on the fence if I want to keep the 9" or sell it. But I may change my mind in the future, and if they changed the design slightly over the years, then maybe I should keep it so it matches the 2011 6.5" model I have that I will probably keep.
I know CRK tends to do some small minor changes over the years, and the experts on this forum usually know!
I know CRK tends to do some small minor changes over the years, and the experts on this forum usually know!