Great idea, Duckogram. Of course you're not REALLY supposed to do that, but that's exactly the kind of thing I'd do anyway... just didn't think of it.
There's plenty of room under these things to work comfortably on a creeper... heck, in some spots you can even sit up under there. I can't see the harm in sitting it on the jacks long enough to do that test... and just make sure I stay in an area that would be "safe" should the jacks fail and it settle back on the wheels... extremely unlikely.
Thanks for the tip!
2016 Coachmen Pursuit 31BD
2015 Jeep Wrangler Sport Toad
Nights camped in 2016: 19