Ok, I'll give it a shot:
Normal Hondos tend to develop quite a bit of black tipping as they get older. They start out all nice and bright orange, but most will slowly develop more and more black tipping as they age.
In the albino form, since melanin is removed, they get white tipping instead of black. What would normally come in as black over time, comes in white. A sort of 'white-wash' effect.
'Normal' Hypos get far less tipping, sometimes none at all as they age. When you combine that with albinism, the white tipping 'may' end up being reduced.
I think the ultimate goal with hybinos would be to end up with albinos that don't end up with alot of whitewash as they age...
That's my crack at it - Where's Marc when you need him, lol.