Always be careful when picking a 3rd party ink. There are good ones out there but there are a lot of bad ones. I fix printers in the field and I have fixed machines from Colorado, to California to Virginia for the last almost 10 years and I have never heard of or seen those inks in a machine before. Maybe I have just avoided their 4000 customers. If you want to be safe stick with a brand that a lot of people use already. Bordeaux, Triangle, JetBest are three off the top of my head. At the end of the day, ink cost is one of your lowest costs to begin with. Trying to optimize it can be more hassle than it is actually worth. You are much better off optimizing work flow issues and cutting costs on time and mistakes than ink cost for most small shops. Obviously if you are printing 10 liters of ink a day it is worth it but if you are a 1 man shop like half the industry, it's not as important.