Hello! 
I am trying to decide on a pinout methodology for a module that will be assembled board to board on a bigger PCB.

considering the pros and cons of LGA vs. castellations(cut half vias), i was thinking of combining the two – using a small amount of castellation pins and a bigger amount of LGA’s, so the user could choose if to use only some features (with easier assembly line) with only the castellations or to use the full features by connecting both castellations / LGA’s.

is this mechanically possible? does the assembly process of one negates the other in some way? (height, heat, etc..)

I would very much like some opinions/suggestions on this matter.