I'd love to know too. I picked my 66% chance het VPI axanthic + 66% chance het albino male based on the black back reduced pattern rumor a while back. The daughter I picked to hold back this year is also fairly reduced pattern and was the brighter more contrast (low yellow?) one. But it's a long shot she has the VPI axanthic gene much less both even if I knew what to look for on the VPI axanthic side.
If anyone has any good pointers for het stripes I could use that too! I’ve got three possible possible double het albino stripe girls and not sure I want to keep that many (but probably will).