this was a transitional episode in many ways - we are transitioning from the first season when Hank and Karen were living separate lives, suddenly they are together again. Hank transitions from shooting live ammo to suddenly getting a vasectomy. Mia transitions from a life of anonymity to suddenly being independently wealthy (off Hank's talent). Thankfully Hank seems to have lost none of us talent for attracting drop dead gorgeous women, assailing all with his witty wisecracks, or managing to get himself into trouble in the way one snatches defeat from the jaws of victory.
In other words, the more things change the more they stay the same. In the case of Californication, that's a good thing.