For operating on really sandy /unprepared desert strips,consider using the `Antarctic` prep with skis,even if only on the nosewheels,as they are more likely to `bog in`,and a few strips of PSP for the mains before you stop.The tyre pressures would be reduced on the mains anyway.As with ski flying off snow,once you start moving ,keep going,full back stick to keep the nosewheel light,and steer with power..Helpful hints 101 from Justin Time,...next time..Kuwaiti sand is probably same as Iranian..GW1..