Digital BW, The Print

I'm considering setting up a gloss printer, and I'd prefer neutral to mildly warmish tones.  In looking at Aardenburg tests, the piezography MPS don't seem to be doing all that well. As a result, I'm thinking about using HP PK as the basis of the inkset, as it's done very well in Aardenburg's tests.

As Paul's tests awhile show, the HP PK inks bronze quite a bit without special treatment.  The main options seem to be:

A.  Use MIS PK, which has less of a bronzing problem than the HP PK, and use glop to dilute the HP PK.  This would give warmish blacks with the rest of the tonal range being pretty neutral.

B.  Use all HP PK, and dilutions thereof, and use a second run through the printer to apply glop.

(Another option would be to use a spray sealer on the prints, but I don't have the space to make a spray booth.)

The HP PK is available in the HP 771 cartridge, product # CE043A.  It's a 775ml cartridge that sells for around $263.

A. would be the less expensive option, as the HP PK would only be used diluted.

Any thoughts or suggestions?