Pro tip: I stopped setting my flat iron at 450 and my clients' hair stopped snapping off
Honestly for 3 years I ran every flat iron at 450 because I thought hotter meant sleeker and faster, and I was losing maybe 2 or 3 clients a month to breakage they blamed on me. Last month a stylist at the Sola salon in Phoenix let me borrow her iron set to 350 on a client with fine highlighted hair, and that head came out smoother than mine at full heat. I felt pretty dumb standing there with my 450 iron still warm. Turns out I was frying the cuticle to save maybe 3 minutes per service. What temp are you all actually running on fine hair, and does anyone still go past 400 for coarse texture?