So I'm level 41 & I've got Lydia to level up with me as I've played. She wears Ebony armour, wields an ebony sword and shield.
But she's still wielding that crappy bow she started off with. Is there any way to get her to use the super-duper ebony Longbow of Enchantment FTW I crafted for her?

for me this worked:
-take all item's from Lydia
-get console ... (cliclk on Lydia to get here code)type .
-you will get list of hiden item's include hunting bow, type code (im my case huting bow was 0010e2dd)

BTW only im not sure Enchantment bow can she use, first try with one regular bow

One of my characters gave Lydia a bow I had smithed to legendary, and I always enchant weapons and armor before I give them to her. Have not had a problem with her using/wearing them.

OP, don't know what to tell you about this.


http://www.uesp.net/wiki/Skyrim:Followers

UESPWiki is the best website for Skyrim, IMO. Hopefully, at that link, there's something that can help you.

Good luck.