Additional eye shapes and/or pupil sizes?

[Tad Carlucci]

I'm going to chime in once again in opposition to increasing the number of values for eye shape and/or pupil size.

Why?

Because keeping these traits at just two values maximizes the effect of genetic drift for them.

Huh?

Well, that means that if you don't pay attention, you're very likely to lose the recessive value and have to work to re-introduce it if you want to produce an 8- or 9-trait cat. Increasing the number of values for these traits actually devalues high trait counts.