You’re asking for side by side comparisons? It’s nearly impossible for anchor manufacturers to scientifically provide for standard conditions to compare two anchors. I can’t see any of our anecdotal experiences really have any scientific merit. Even when I know I’m in a grassy anchorage, I don’t dive the anchor. For all I know, I’ve grabbed some random sand. I’ve also been in some anchorages with several positive holding reviews, only to attempt several drops that would not withstand backing down. Again, different standards for what is holding in the fist place.