The way they get up is providing very little power to the rear. When too much power goes the the rear the front lifts up and when it does... You make like Humpty Dumpty...

Low pressures certainly help as well as low range and the TCS working quite hard as can be seen by the wheels when they slip. Also the heat and the rubber being at a nice warm/hot temp will aid grip. imagine doing that in the UK's current temps.. dont think it would happen somehow  FFRR MY06 facelift With TDV8 Alloys Zeros/ATR's
Mantec Sump Guard, Rigid Load liner, MY10 BT upgrade.