Here are 2 Blbl animals. As you can see, the black has a full blaze, and the red only has a star and a snip.
Another thing to remember, is that the ss (recessive spots) gene can give very similar results to the Blbl or BlBl.
Here is a calf that very much looks like BlBl or Blbl. However, as both her parents were solid colored, one can presume that they were both Ss blbl in genetic makeup. They both passed on the s gene, to make her ss blbll
Another calf, his parents were ss blbl and Ss blbl. He ended up ss blbl.