The pin-lock system is an excellent way to double-glaze the visor so it doesn't fog up. The airtight pocket between the bill and the pin-lock makes an extra layer of insulation, which makes it harder for the fog to form. Still, you can use a pin-lock with a tinted visor you made yourself as long as the bill is pin lock-ready. A tinted pin-lock with a clear visor may let some sun glare in around the edges. A clear pinlock would be a good backup plan when the weather changes without warning.