The rule of thumb is to never spin your tyres on them as it takes off all the grip luggs
That's it. I tested mine out to see what they could take. I picked a less than ideal weekend unfortunately; headed to Stockton but it was cool and overcast and there had been some rain recently so the sand was quite firm. To get bogged I had to approach a dune face, stop, then floor the V8 Cruiser. This was effective and I managed to bury it to the chassis each time.
I tried recovering with the Mallee Tracks under the front tyres. This worked, but required more revs and subsequently I did wear a few lugs off. Not unexpected in a vehicle weighing 3T and with plenty of power. I also foudn that the tracks had been pulled underneath the vehicle and so I had to dig for them a bit. This is why all mine are fitted with a bright gree lanyard; so you can find them again.
After pulling myself out, I looped back and buried the Cruiser again next to the first spot. This time I placed the Mallee Tracks under the rear wheels. This took a bit more digging with the end of the tracks as the sliders were sitting almost on the sand so I had to clear enough space to get the tracks in front of the tyres. I found this recovery much easier and was able to more gently drive onto the tracks and out of the holes.
Third attempt was using four tracks; as expected much easier still, especially as the rear wheels drove over the front set of tracks in the holes made by the front tyres.
Any of the rigid types of device are worthwhile I would think.
