I’ve been driving for nearly 20 years and I still have not mastered the Intermittent wiper settings. Always either too fast or too slow. I just can’t do it. I feel bad when I have passenger in the car and it’s lightly misting. They must be in constant fear that I can’t see or I’m too distracted trying to locate the correct setting on the dial. Or they’re just annoyed with the sound of wipers scraping the dry windshield.