Not sure about "The most" part, Al...but I'm definitely in on the underrated aspect of those Jupiters particularly! I wish there were more colors and lens variants that I could grab!
No,,,I seriously believe they are the most underrated pairs..And customization is inadvertently the reason why they are overlooked yet they are extremely customizable. I'll explain
I have every pair of JFL and JC in every color way. I have Jupiter Carbons with Jade lenses, Fire lense and with matching color icons. They are the only pair you can remove the icons with screws so the icons are easy to coat or paint. I'm gonna gold plate the icon on my next pair and add gold iridium polarized lenses.
I wrote like a two page article about this exact subject. Maybe I should post it here.