--Popping up the front wheels on bags?-

Hi, im from Australia, have a bagged 95 hilux.

Im enquiring about hopping/bouncing on bags, i have done my research, and done a search on the forum to do with this.

In the states and canada you guys are bouncing on air, even a foot or so on bags.

I am aware that this can cause a blow out in the bags.

I would like to find out the system used to make them bounce? I understand that they run more pressure, use different valves, but there is more, and i want to know!!!!

If anybody has any info, or links to sites with info, and even a complete rundown on a setup that will make the front lift the front wheels off the ground, inclduding pics and any special details, please put them up.

I would like to make mine pop up the front 2 wheels

cheers