Arrowjet Cartridges for Canon no longer use SI ink

[Darth]

According to Alotofthings.com , Arrowjet Cartridges (except for Epson for now) now have OCP ink out of Germany. Does anybody have any experience with this ink?

 

[Inky]

Any idea when they switched? The last arrowjets I got had a heavy magenta tint, which makes me wonder if it was formulabs. But I don't know fpr certain.