They are both great. I smoked them before the recent incarnation and enjoyed both. However I recently restocked 965 because I enjoyed the Cavendish quite a bit. I do think new tins need age and then some time to rest / air after opening.
I was thinking the same thing so I picked up a tin of most of those available just so I can at experience them. I don't feel the need to stockpile though.I need to try a few more of these dunhill blends before they all disappear