I think 1/2/6 that you ID'd with YB do have it + 5, just not 3/4. I do see some blushing in those spots on mom, 3, and 4, but on 5 it's a thicker outline and really strong contrast like YB is amping up the black if that makes any sense.
As far as the Calico, it's just tough to see on Bamboo in general and I haven't got a lot of hands on experience with that morph so I think you would be able to tell better than me. I can see it on the Calico YB's because there is more lower color to contrast and scramble.