I've always shot with just my prescription glasses (polycarbonate lenses). I'd like to get a set of the wrap around type with a prescription insert. I want the prescription insert because I want the interchangeable color lenses. I'm mostly shooting pistols if that makes any difference. If you have a set, what kind and how do you like them? What lens collor works best? Do you have a bifocal insert or single vision. I normally wear a progressive focal length lens for everyday wear. I see some sellers offering a bifocal at the top so you have better vision on the front sight. Any experiences you'd care to share would be great.