I've been doing every combination to find some holes in these rules for pronoun word order. I thought I found it with these sentence examples:
I sent him to you. (Je te le ai envoyé)
I sent you to him. (Je te lui ai envoyé)
Well... they make sense and the rules aren't broken. Darn. Howeverrrr, I finally found something that my advanced grammar books failed to explicitly explain. Vous, te, nous.... These pronouns are ...