I used to tell every client that flex rods only work on certain textures, but last Tuesday I had a 62 year old with super fine hair ask me to try them anyway. I did a wet set with mousse and let them air dry for almost 2 hours, and the curls actually held for her whole shift at the bank downtown. Now I'm second guessing my whole approach, has anyone else had a tool or technique surprise them like that after years of doubting it?