I am surprised the 60 isn't at least showing a strong deep notch. My impression from earlier in the thread was:
I brought out the AT60ED and was able to see the double lobe at 60x, beginning to clearly resolve at 72x, and fully resolved by 90x.
The interesting part was when I stopped down the 80 f/5 to 42mm:
Out of curiosity I again used the Meade 80 f/5 achro and could see some indications of the split at 57x and it was definitely beginning to resolve at 67x and cleanly resolved beyond that. But what I really wanted to test was stopping it down, so I put the lens cover on and removed the central cap to achieve an effective aperture of 42mm. This was showing elongation at only 67x, and showing a double lobe at 80x. At 100x the impression was of two overlapping disks. Each alternately appears a little brighter/in front of the other, and this contact binary appearance remains at 133x.
I suspect different folks can/will perceive substantially different things in the exact same conditions. That is certainly true of high delta magnitude doubles, but I think it is at play on some of these close equal pairs too. After all, the diffraction rings and spurious disk are not even stripes and a circle (step changes), they are wave functions of undulating intensity. Judging elongation, notching, overlap, full resolution, etc. are all somewhat subjective near resolution limits. That is without even factoring in seeing, aperture, and the nature of the instrument (short achro, long achro, SCT, apo, good figure, poor figure, etc.)
The fully resolved part vs. touching is one aspect that I don't obsess about. At one magnification something can appear to be touching and at a higher power appear to be resolved...although this latter part is relative too, since "resolved" does not mean that the intensity between the two stars drops to zero or even anywhere close to that.