Rili mixed with pfr is fine, but you will get a mixture of offspring, some pfr, some cherry grade, some rili, some awesome rilis.
Gotta cull them lesser ones out.
Wait wait wait... cherry grade and "some rili"?
I know rilis were developed by PFRs, but what is
the possibillity of getting cherries again? This goes
back to my horrible culling skills... just love the shrimp