Does anyone know if heads are compatible between Julius1 and Sapta15 families? They seem nearly identical to me, I think that it's just that one is SED and the other isn't. I even notice that in the ROM of the patient I'm currently trying to identify (because the label is missing) the CAP shows family Julius1 but the SAP shows Sapta15, further leading to my assumption that they're physically the same inside.
Did anyone try this? I'll be guessing here anyway, so I've probably got a 50% chance of choosing the wrong family either way.