Cisco Spec 1.5 ohm at 3.7 voltage. It's good for me! I haven't gotten a burning feeling unless I hit it too hard or it was running dry, but it's getting it every time.
That's what we were thinking too -- trying a 2.0 ohm for him. I can definitely see dripping being great once we get the hang of it (and it hasn't been too bad for me tonight), but I feel bad for him. :\ He's bummed; he said, "This makes me think I want a cigarette! Give me a clearo!" Haha.