Not a bad chapter. The Duph encounter is a bit odd, but eh, I agree with whomever said that they likely just wanted to avoid a big conflict. After all, you fight with Duph too long and who inevitably shows up? Riful. That equals not fun for three Claymores, no matter how strong they've become.
The thing that bothers me is that this manga has a proliferation of very slight inconsistencies that become annoying after a while. For example, Cynthia says that Yuma isn't very good at regeneration, yet she's a defensive type, now obviously stronger than a level 14, as seen earlier, and she was the one in the War of the North whose entire left half got destroyed in the initial skirmish with the three awakened beings and she had to regenerate it. So, what the heck? Years ago, when she's a weakling, she can regenerate half her body (granted in a fairly long time), but now, when she's supposedly much stronger, she can't handle a leg? Yeah. Little stuff like this is littered throughout this manga and it's just sort of a let down every time I come across one.