Below is a left/right graph, from one of my latest rips as it compares to a well recorded CD, and also a dynamically challenged alternative slammed and clipped during mastering ...
We have the typical analog subsonic bulge. The subsonic nature of any tonearm isn't simply based on the cartridge, it's very much influenced by other factors, esp. vinyl quality and certainly cleanliness (but that's a separate topic altogether). Measured as is, the rip near equals the CD in DR values. Apply a 20hz filter -24dB, and the values actually
get closer.
Unlike the rip or the CD, the HDCD(~fake variety) offers terrible sound quality no matter what you do to it. Lots and lots of clipping, especially in the right channel, it measures accordingly. -4 dB; it measures the exact same. -4dB & filter 20hz-24db; the values change, from 9.2 to 9.9. Surprisingly the right channel improved from 9.6 to 11.3, perhaps indicative of its greater compression and mass clipping.
These results are consistent, within my system, using various music.
Funky DR values as related to LP rips are common, especially if a tick or pop represents a peak value, and/or aided by a higher noise floor. But done correctly, rips consistently match up to the CD.