instead of saying things like "Female normals are very useful but males not so much" or "Normal males have little use in breeding", i would go one step further and say:
never breed normal males because it makes sense to breed genetically more powerful males to genetically less powerful females. i cannot think of a single situation where breeding a normal male makes sense.
if you can get a free normal female, take it. combos like jigsaw, bee, or pewter, can produce more jigsaws, bees, or pewters, when bred to just a normal female.