Me and my DG mate ran CoU with the intention of purposefully farming Lisent U's
This wasn't all of them.
All in all between 2 people on 5 chars we farmed over 100 Lisent U's in 1 hour. While some say that's not amazing, we also scored several thousand valor, several skill books, a FV and a tonne of CP.
All in all we could have done better but this was a primary test, after I get back from vacation I'll pump it up to the maximum potential and see what the figures are.