Used OEM for 4years with no issues... switched to Bordeaux and aside from the MUCH stronger solvent odor, had no issues for 1.5yrs UNTIL dotdotdot (search my threads for head issues/replacements).
can't blame the ink for my issues, since there's no real way to tell... but I blame the ink.... or at least the last batch i got from Bordeaux.
Fellers sells it too, but Advantage is a Merchant Member here and they carry Triangle Inx brand which is worth looking into.
heard great things about Triangle Inx... talk to Artbot, he'll sing their praises and I'll sing his praises, and longstory short... Triangle's really good. I'm pretty sure I'm switching over to Triangle Bulk Inx in the near future.
oya, and they're 75% the cost of OEM.