anyone used SANENG Micro-Swirl Edging on their windscreens?

[Jfcroni]

It looks interesting. I may try it on my shield

 

[GPMAZ]

I bought some a few years back and tried it on a couple of BMW's. I'd say its marginally effective at best. It may increase the air pocket by a couple of inches. Since I was trying it on taller screens, I ended up taking it off because I found it distracting.