It sounds to me that you like the Meopta because there is a special magic about the view through it even though the SLC might be 'better'. Sometimes you can fall in love with a lady who is not perfect and it is the same with binoculars!
No I like it because of the handling. It feels and works so great in my hands.
the view is acceptable but to me one obvious step below the SLC. consistent with the priced difference
some BF members here suggested I have a "bad" sample. my feeling is that it isn't. but I won't be able to find out about it any time soon. For an exchange I will need to ship back and forth between Vietnam and Europe, which is too much hassle.
Maybe I'll know in 20 years when I ship it back to Meopta for maintenance. or until I buy another Meopta.
again the Meopta is my best binoculars until now in terms of ergonomics
I guess I'm the BF member who suggested that your Meopta is probably a "bad" sample. I'll suggest a quick and easy star-test one more time and then I'll shut up.
I promise it won't be that hard to do, especially if you use an artificial star like a small shiny ball set up at maybe 20 meters away in sunlight to produce a tiny glitter point of the sun. Of course, the binocular needs to be kept still, either tripod mounted or just propped on something. The second binocular for boosting the magnification can be handheld behind the eyepiece of the tested binocular. The star needs to be carefully centered in the tested binocular, but alignment between the two binoculars doesn't have to be perfect. You'll see that the diffraction pattern of the "star" will remain stable over a surprisingly wide range of misalignment. Its shape will start to distort only if you wander too far out of line. Also test your 7x50 Swarovski as a reference.
Your impression of a degraded image in daylight is what nearly convinces me that the Meopta has a problem. 7x50s, because of their large exit pupils have a very easy time producing a good image in sunlight since they are stopped down by the eye to a very small effective aperture of around 17-18mm with an effective focal ratio above f/10. Even bad ones tend to look good when such a small central area of the objective lens is the only part contributing to the image quality.
The star-test won't eliminate every possibility. For instance, small collimation and diopter adjustment problems won't show up, but even if I'm wrong you should come away with a new skill for evaluating binocular purchases.