Ah yes, thanks for the reminder.

I was thinking actual perks in the skilltrees, not skilltree levels (I assume followers don't obtain perks like Juggernaut in the Heavy Armor Tree for example).

Not sure, i havent bothered looking into the perk stuff sorry i Just wanted to get rid of the bow when i used Aela for a while.

You could always check cheat pages they got a list of the perks and the id for them, then you just mark the npc and use alot of time typing all that stuff in.

I would not bother with it just keep it simple it more than plenty to make them strong enough to clear out a dungeon while you drink your tea in the corner