Yeah, expect the Cisco to die almost immediately and consider yourself luck if you don't. As much as I love Ciscos, they can be pretty fragile with a sudden increase in voltage. I had one (which admittedly was a little on the dry side) pop and die when I moved it from a dying Riva battery to a charged one, and that was a 2.0 ohm.
One atomizer I strongly suggest you try on your BK is a standard resistance Joye 510 (roughly 2.3 ohm). The BK hits like a friggin' tank with that atomizer. Just keep it wet though as 2.3 is a bit on the low side for 5V so it may not last more than a few days if you vape it dry too much.