Here's a polycarbonate sag lens I got from Tony in a trade. It's the same shape as the standard prismatic GE plastic refractors but it's crystal clear.
I bet! I'll have to put this in my M-250R2 and install it in the backyard again to see what it looks like. Or I'll just install the Unistyle and put this in that. I almost don't want to put the Unistyle back outside though. It deserves to stay NOS-looking after a hard life of service.