Now after all this I am not saying the LP is superior to digital. I don't think it is, but not for the reasons usually stated. So I'll state them here: The biggest single weakness of the LP is playback; that's where all the 'distortion of the LP' comes in, not during record. Most people fail to set up their turntable correctly. Those 'studies' about LP distortion are mostly bad science by not providing provenance about the playback equipment- go and look for yourself. We don't know if they got the setup right, if their phono section had RFI problems and so on. The second biggest problem of the LP is phono section preamps, the designers of which don't seem to realize what happens when you put an inductor in parallel with a capacitance (the tonearm cable) and so the phono section can generate ticks and pops due to overload problems that sound for all the world as if they are on the LP surface. I found out about this problem serendipitously 35 years ago. The third biggest problem of the LP is platter pads. Most people don't understand how they affect distortion of the LP in playback; when the LP is tracked by the stylus it can resonate and 'talk back' to the stylus. A proper mat is the same durometer as the vinyl so absorbs vibration and damps it.
Once you get those things right in the paragraph above, you find that most LPs are free of ticks and pops and very low distortion. I'm very used to playing entire sides that are perfectly quiet. When an LP project is cut, the pressing plant will send a 'test pressing' back to the producer, on which he has to sign off prior to the pressing plant going ahead with the LP run. So if the producer is conscientious, there will be no ticks or pops because there are none on the stamper.
Ralph, I take this as a round-about way to be say: if you do the wrong things, you won't have optimal performance. Is that basically it?
The "biggest single weakness of the LP is playback" is true if
-- the table is not set up correctly, or
-- the phonostage is of a design you find problematic * or
-- if they use a mat or the wrong mat. ( not quite clear on that last point).
But, if one does not do the wrong things, -- the list could be anything, there are many ways to screw up -- then ... what -- the biggest single weakness of the LP does not exist?
I don't know where my front-end stands in relation to your list. While there are defective records where cleaning does not help, I find if I keep my records clean I have no problem with ticks and pops.
Despite all this, I still think digital is a little better if its done right (again, most of its problems are in playback). Its main advantage is its a lot easier to set up and you can often plug and play, something impossible with LPs.
This sounds to me like you think digital is a little better because it is more convenient and/or not as easy to get wrong -- just plug it in and click.