Dear @lewm : and that tracking ability number ! . Those " incredible " specs that sounds " absurdly good " as you said comes in Jan site.
Now, I never measured it and what I can say to you is exactly what I posted in those threads that are confirmed by other Allaerts owners in the forums.
Now, Jan is not only very professional designer and manufacturer but very serious and honest on all what he does.
The first hand experiences I ahve with both models in the tracking ability issue said that does not matters in which tonearm ( because I mounted in different tonearms. ) it tracks everything and in the 1812 not even the 26/27 can makes a better job.
If you read in several of the wbt and here references on the cartridges confirm not only about TA but about that huge separation and those gentlemans not even mentioned cartridge specs as I did it here.
I have to tell you that I bougth my MC2 Finish Gold with out knowing its specs but because what owners posted.
Lewm, even M.Fremer was a little surprised about but not even at Stereophile they measured.
The Allaerts quality performance levels makes that those specs go unimportant.
Yes, I thought exactly like you when I knew the specs. Perhaps a gentleman like J.Carr could be who can confirm if those specs can be achieved but in case he remotely comes here and remotely could says that can be achieved then the first question to him will be why not in Lyra cartridges.
R.