QTR-Quadtone RIP

I am looking for the best possible Black & White quality attainable
from a 2200 (or I'll consider an upgrade). 

Currently I use the epson uc inkset and have been trying out the QTR
rip & a few papers but primarily Moab Entrada Bright (as opposed to
Natural for the extra bit of punch I seem to get from a whiter base). 

I must say that without having other inksets to compare to, I think
the quality is really good, but as an experienced old-time darkroom
printer, I know it could be still better. 

I originally opted for the UC & QTR because I wanted to be able to use
the same printer for both col and B&W. And I wanted a low hassle solution.

Now I am interested in the more recently introduced baryta papers like
Ilford Gold Fibre Silk which are more reminiscent of the old darkroom
fibre papers, but because the paper has a 'semi gloss' surface sheen,
with my current UC/2200 setup I am getting 'gloss differential' or
'bronzing' or whatever that 'solarised' appearance is called when you
angle the print to the light (particularly a top/back light). 

With the help of some ddg group members I have just tried some Premier
PrintShield and it helps a great deal, but it's a bit of a pain to
spray (especially indoors in these cold northern climes).
I don't know if a different inkset would be all I need?

I am willing to dedicate the 2200 (or upgrade) to get the "ultimate"
B&W quality. So many people have their favourite brands that they are
loyal to, that it's hard to find a definitive review - MIS, Cone,
Epson, HP,....

Thank you for any input,
Frank