Learning chords on the guitar is very much about shape once one has worked out what finger goes where and for some reason this did not seem so obvious to me on the piano.
Yeh, I know your thinking:
"Well you Dill, how could you miss that?"
Then it suddenly occurred to me the other day that it must be the same on the piano and - that there must be a finite number of meaningful shapes as an octave is an octave is an octave if you get what I mean.
So I have shifted my perception a little as I am playing chords and trying to feel the physical shape of a chord in my hand and to recognise when it occurs again but is for a different chord!