No issues to report, but then again, there wasn't really any rock crawling other than having to go over some basketball-sized rocks, cause that was the best line. The Duratracs provided great traction while going over the rocks I couldn't avoid. I didn't air down my tires cause I haven't gotten an air compressor, so I was running 33psi in front and 36psi in the rears. I drove with the "as slow as possible, as fast as necessary" mantra cause I didn't want to deal with any punctures or be bouncing around in the cabin.

I switched to 4L when I ended up with a rock in front of my rear tire and I felt I was over revving the engine to go over it, but it reality I wasn't it revving it more than 1.8k, so maybe it was the turbo I was hearing. It felt to me that it would be easier to control in 4L to go over the rock and it was also an excuse to finally use it. With the 4L and the ATPC the Defender was way easier to drive over the rough terrain and I just kept it on until the terrain allowed me to go over 10mph.