[SteveC7010]

Some other important points to remember in stabilizing a trailer:

The wheels need to be firmly chocked, too. If they're not chocked well, tripods and SteadyFast and most other stabilizing systems won't work nearly as well as they should.

(There are already several threads about the comparative merits of the various commercial and DIY chocking devices so I won't get any further into specifics in this thread.)

It's also my opinion that the scissors jack style of stabilizers work best if they are not extended more than about 50% of their reach. I carry some blocks made from 4"x4" and 4"x6" posts for cribbing up the stabilizers and landing gear. They're not always needed, but on a slopey site, I find them invaluable.