I've never needed it on the road but I've tried it out at home to make sure it worked. On soft ground I would image that it might need something under it like a chunk of 2 x 4 or plywood since it has a small footprint.
"For every complex problem there is an answer that is clear, simple, and wrong." (Henry Louis Mencken)
2005 X2 Viper Red, MCX, Acme 1285, PPass
(previous) 2001 X5, 1991 TriStar 190