Nope, that was right, Menz. Thank you!
It'd also hit me that I'd see a free eye texture for the BlackEyes in freestuff, so I downloaded that and put the V3 template over it. They were very similar, so I went ahead and got them, and I am a happy Fyre-chan. They take V3 eye textures very nicely. Here's a comparison pics, V3's eyes on our left, BlackEyes on our right. In the top, both are wearing a BlackEye texture, in the bottom a V3 texture. The V3 iris takes up a little more of the map, but the BlackEyes are made in such a way that no weirdness results. In fact, I think the BlackEyes take the texture better; it looks clearer and just nicer to me. My professional artist sister agreed.
Fyre-chan approves. :)