http://eq2.thedruidsgrove.org/archive/eq/t-2545.html
Charming dogs in Chardok was a nice shot in the arm for my bank account from 58-60 too. Easily got 30k worth of loot at the exit.
I'm with Geddine. I let my charmed dog fight a few Sarnaks and when he's almost dead, invis and kill him with a root.
My personal experience with charming dogs there makes me "think" that charisma +100 definitely made a difference. With 110-ish cha, I rarely had charm wear before the dog's demise.
Post from a few months before PoP release.