That was not an IFS issue. That was driver error plain and simple. Had I just stuck to the line...
It's so obvious when I look at the moment just before I tipped, maybe 6" more to the right and I could have rolled the right tire up and down the other side of the rock, which slopes away from the wall. My slider and skid plates take the hit rather than the stuff above the waist line. Or maybe a harder left crank, sooner than what we were doing with the 80s?
I honestly just don't see how a solid axle would have made a difference on my line. I mean my left tire is already spinning in space with the suspension against the bump stop. Even if it dropped 6" more, there practically no weight on it until my truck's center rotates over. The rear axle is twisting the opposite way, so I already have significant resistance to the left side coming over and that didn't help as the front end dropped.
I just have two feet more wheelbase than the trucks that came before, so I had to go straight longer before the left hand crank, which widened my arc and ultimately set me up for a harder rotation. Then since I have 6" less track width, the top of my truck rotated a lot more than the wagons before the left side hit anything solid.
This to me is one of those cases where a highly built truck just masks a very poor line selection. Even assuming I make it through (which I still doubt) with a live axle and leafs, it would have remained a bad line. Keep in mind that I would be running a 58" wide axle with maybe 2" lift springs, stock configuration. I would not get a ton more downtravel, maybe 2~3". My left tire is 15" from hitting anything substantial. IOW, I still would need a whole bunch of rocks stacked, which is probably what we should have done from this point since the 80 series hard left crank technique did not work.
Same as riding a bike with suspension, you can blow through lines that require much more control if you don't have 140mm of front and rear squish.
Well, I get a daily reminder of that mistake and maybe one day I will get around to fixing my 'Nest. :-/