Had a student in class that just bought a mirror lens Scubapro mask. Good fit, looks cool, cleaned before class, as per directions. Most of his time was spent trying to keep it from fogging. He got LOTS of mask clearing practice but was constantly distracted by not being able to see clearly. I'm afraid I'll have a hard time recommending any of the mirrored lens masks if they are this much of a PITA. Not real fond of them for students, too hard to see into for mask skills. Going right to the source at SP for an answer.