My Fox Enduro Pro pads are slightly less ventilated/well made but very similar and Fox has since switched to what appears to be the same D30 pad vs. the proprietary but identically shaped pad in the older version. My thoughts about the level of protection vs. ventilation are the same. Before each ride, I look at the Fox pads and my 7idp Sam Hill pads and usually go with the far less protective Fox pads.
Back of knee cutouts work for some but not others. I couldn't get along with the 7idp Project Knee pads because the cutout wore my skin raw.