Difflocks... Front vs rear... My comment...

I have never in my life had front and rear difflocks at my disposal to use at the same time ,,, but i did today and this is what i thought....
I went to a very steep but short hillclimb today,,,, one that i had completed in my last Patrol many times which only had a front difflock...
It could be around 50degrees at its worst but mainly around 40degrees with a loose shalely surface...
So i tried it slowly with no lockers engaged and got to the rocky overhang and my rear wheels could not go any further forward as my right hand side rear wheel was spinning with no hope of traction.......
So then i lock the rear diff,,, wait for it to engage properly and then go again with exactly the same problem but now both wheels are spinning with no hope of going forward at all but the car is starting to go a little sideways and my safe position is changing a little into a more angled position...
I lock the front diff and wait for it to engage,,, and then drive straight over the rocky outcrop like it wasnt even there.....
I spose my point is that my rear difflock didnt seem any more efficient than my last car with the LSD....
I am sure there are places it may come in handy,,, but i was surprised it wasnt chalk and cheese today...
I have seen a lot of dudes saying about fitting a rear locker instead of a front.... I dont get why they would say that????
Just thought i would write my thoughts as i was thinking them...
The Automatic makes a hard days drive much more enjoyable over the rough stuff...