Tune saved as 090708_1200.snapmcisfc6. I settled on the 15.486GHz optimal frequency, and tweaked that for effect. Then I ran a few emittance scans. During that process, I noticed that the beam intensity had stepped down and up a few times. So I tweaked the frequency again to return 30enA on FC6. Note that in this process the beam shifted slightly in the horizontal plane. The emittance shape is different also. Attached are emittance scans in sequence, the last one being the "real" one for this test. Finally, before and after RF screens.

15.480GHz => 30.0nA

P.S. Appended is a stripchart of the 18O4+ beam on FC6 following the emittance scans (magenta trace, between T-5 and T-4h). Not bad, eh?