Richmon,
I'm in a similar situation, as you are. I recently bought a new Chenin from Mick M., and wanted to share my impressions.
When you say:"amount of Âsweetness in the midrange, would like some more of that."- I'm not exactly sure what you meant, but what I'm hearing, is the slight emphasis in the presence region (voices especially).
It does make it sound very "alive", but on some recordings it becomes too forward, boardering on irritating.
Again, I like many things, that Chenin does excellently, but it defenitely will not let you " to sit back and relax", it requires your full attention.
And to me it's becoming a matter of personal preference in a sense what one expects from the listening session- relaxation or kind of an "analytical" and "wow" experience.
I should make a few reservations though:
My Chenin is new and likely is not broken-in fully
My source is digital (Modwright tubed Denon 3910)
And my impressions are of course relative to my previous pre-amp McIntosh C-45.
I would love to know if anybody else shares my impression of Supratek midrange?
Also, what tube(tubes) can make midrange to sound more "recessed" if you will.