I would love to see some waterfalls or ideally real-user measurements. Actually, just a few sample pages, one with the Capturing version and one with the stand

I would love to see some waterfalls or ideally real-user measurements. Actually, just a few sample pages, one with the Capturing version and one with the standard (media query) version would be helpful. I made some comparison pages myself, but I don't think they're very good: http://www.jefftk.com/test/capturing/off?ModPagespeed=off http://www.jefftk.com/test/capturing/on?ModPagespeed=off And when I ran webpagetest it didn't speed up download time on desktop or mobile (time to onload ("plt") decreased, but only because the images were postponed until after the onload event).