Let's see if I can express my question in a way that makes sense...because it's rather a complicated jumble in my head...

If lessers and/or butters are simply "het for daddy"...then why don't you ever see a "daddy" pop out of a clutch of lesser x lesser or butter x butter or whatever? If it's just a matter of a hidden simple-recessive gene, then statistically speaking you should see "daddies" popping up on occasion without the need to breed back to normal looking siblings.

Of course, my question doesn't answer yours...but yours made mine pop into my head.