Totally off topic, but my Grandpa had a pair of binoculars stamped "Made in Occupied Japan" back in the day. As a professional statistician and Deming acolyte, it's amazing to track the history and progress of data-driven processes. Back to your regular programming...
Tough to tell without a recording as there's a multitude of "possibilities", but here's my experience with rotational scraping...
https://forum.ih8mud.com/threads/parking-brake-re-assembly-tips.1265971/
But after watching your video, the GX seems to have done better than the FJ. In stock form, adding Crawl Control (and MTS "while you're in there") is a really good bang-for-the-buck upgrade in terms of capability for otherwise stock rigs. The ability to go slowly up/over/through stuff really...
I will also add that skid plates are a "slippery slope". While they do indeed provide the needed protection for the undercarriage, you also end up losing over an inch of clearance everywhere, and end up dragging more. So then you need a lift, and even taller tires to match, and then you need...
Cool, nice job! I still think this mod is one of the best bang-for-the-buck mods in terms of adding capability. Less than lockers and even cheaper than a set of tires.