Mamba Max and Spektrum receiver programing

Ok, so I've been thinking about how to program my ESC and receiver and I'm stumped.

Which do I do first? Do I set everything up then turn on the power at the ESC, program the reciever, then the ESC? Or is it the other way round? :032:

In my mind it makes sense to do the receiver first, but I thought I would ask you guys to verify that for me.

Thanks!