For me, 1st pressing mono vinyl jazz are history, collectible, and just can’t be reproduced. Just taking original analog master and running it through a modern board to make modern records against a totally black vinyl background just doesn’t capture the essence of the original pressing even though they technically sound nice. Don’t get me wrong, I love listening to a Mofi master pressing sometimes but nothing replaces a mono 1st pressing Blue Note recorded at Van Gelder to my ears.