I have been running 7 color on mine. (M,C,Y,Or,Lk,M,Gr,K) Sometimes, I found Flexi, I had to drop my 255 Red down to 210 and it became brighter. I pulled profiles directly from Roland.
https://rolandprofilecenter.us/media-library.php?
As all these icc profiles are a base point, and all machines...