Sue
As much as I'd like to give you some help here, without some more tests, I'm just not able to do it. My gut tells me that he's going low and bouncing up. But I can't prove it. At some of the recent AMPS, you put that you shot 0.075u instead of 0.75u. Are those errors or were you shooting a BCS (which I doubt since some of the AMPS were really high).
Levemir isn't going to help if you don't get tests. Even if you could get at least a PS, +2 or out the door, and in the door test every single day and a PS and/or +2/before bed every night with perhaps a +10/+11 in the PM cycle (when you first get up in the morning), there would be so much more for us to go on.
I'm sorry I can't be of more help. I don't feel I can say lantus isn't working for him or lev would work better without some tests.