If that was the way it worked then when breeding a het lav with another het lav you would end up with both carm al, and reg al.

it would be just like any other het double reccesive.
we will use snow as an example.
Snow is a mix of Albino, and Axantic
When mixed together you get a snake that is almost white with pink eyes. (there is normaly just a bit of yellow color left)

So
Het Snow X Het Snow =
6.25% Snow
25% Axantic
25% Albino
the rest would be normal

I hope that helps