I've got a friend who does stained glass work for a living. He can cut any glass, any shape. I'm going to talk with him tomorrow about cutting me a supply of lenses, since I suspect that stones could be a factor on the road. I'm going to keep looking for better "masking" options, perhaps thin sheet metal inside of the glass, or even outside to help protect it. One problem I had with this version, it is very hard to keep the glass from turning as I tighten down the ring. Getting it lined up was a struggle. If the mask was separate from the glass, I could tack it to the surface of the reflector unit, and the glass could spin freely.
I'm having my wife drive towards me to evaluate the glare for an oncoming driver. I'd rather not have to dim the output, since I REALLY like the extra light.
