G'evening Breki and welcome to the forums!

what do you mean, inside each other?

when they /follow .. they will naturally stack on top of each other, if that is what you mean. this does not cause any in-game problems... and could help in pvp by hiding your 'main' in the stack.

you could also use a 'formation' when you get ready to attack. a formation is a set of key bindings within wow, different for each clone, that will allow you to spread out your clones (diamond is a favorite)

if you have any questions, please feel free to drop me a note

have a great night