Same here, Using Triangle when new Roland SJ745. Couple print head replace in 3 years, work perfectly when upgrade firmware, I think new firmware clearn more offent itself. Just when back ISA show look for ink, I will switch to other ink around $89 litte triangle $149 litte. Also just got use Mutoh 1604 right now using oem, will switch to this company too.
I went to INX corp is Triangle ink, The Mega ink in their booth now, Mega ink offer Bio Ink, sample print out from Roland XC look very good, but not availble sell ink litter yet. Too me look very promise for our printer (less VOC).
If out warranty you can do what ever you want, it is your own.
Any end user know about Mega Ink Bio Ink we need more input please..
Have A Great What ever you doing!!!!!