Opalina does appear correct. These two plants do have short stems and here is a closeup of the flower cluster form you, Baja, described. Thanks for the mini tutorial. Thank you all. The Echeveria is still a mystery but it has been for years
I'll get a better picture of the plant/stem/rosettes tomorrow of the XGraptoveria 'Opalina'. Then if everyone agrees I'll post a good picture of all the attributes that helped in this ID.