Piezo Curves - Pro vs K2

Hello!
I am getting some color casts with my Piezo Pro (cool). The only thing I can guess is that I am using old curves from the previous generation.

I know they renamed the ink, but does anyone know whether it was reformulated?

Thanks!

Please email me (help at inkjetmall dot com) with your curve selection screenshots and ink LOT#s (written on the bottles) so I can verify everything.

best,
Walker