It is a very good possibility the sonic produced form a digital source is the one that you have Wed to, there is no harm in this, multiples have left Vinyl behinds as a Source for this very reason.
There is still a lot to be attained from a SP10 MkII beyond it being brought up to Spec' electronically, it all depends on how much the individual is wanting to extract as a betterment in relation to the mechanical interfaces for the critical parts in use to create the replay.
Vinyl will present a sonic with noticeable differences to the Digital Sonic, but not better/worse, on my view it is with a difference.
I have regularly found myself selecting the Digital Source to continue in use over the Vinyl Source, when having the same albums compared on both mediums.
Vinyl is my most preferred method to carry out a replay, but not for its sonic capability only.
The endless play with mechanical interfaces, Cart's, Tonearms, Platter Spindle Bearings, Support Structures, as well as Electronics is what has my attention as well, there is substantial incremental improvements to be created with a TT, by working with these critical parts.
Even though I am more mechanically tuned in, and lack the basics for the EE side, I can't quite detach from Vinyl for these reasons and have EE support at hand when needed.