Two printers at different locations

I have purchased two printers the A1 Mini Combo and a PS1. The PS1 is at my house and the A1 Mini is at my Daughters house. Should I set them up on separate Bambu Studio accounts or keep them on the same one? Will the settlings get reset for both if I or they make a custom change for some reason?

Also do you know if you purchase two printers at different times under the same account do you get a second 6 month of the Bambu filament club? I did ask Bambu, but they did not understand my question.

Thanks,
Bill