On the other hand,,,, I have Sidewinder slide supports and I use them properly as the manufacturer suggests. I was told they are to be just "snugged up " to the slide gear beams and to NEVER use them on grass or gravel as after a time the rig might settle and put too much pressure on the slides. Cedar Creek told me they had no issues with them and as my Daydreamer only has jacks in the front and just behind the wheels with the addition of two scissor jacks under the rear corners and the sidewinders under the slides and sitting on my concrete lot I have a rock-solid fiver however back home on my gravel lot without them I do notice a bit of shimmy. I'm not saying this should be the same on other rigs just mine.
Red Green:
They say necessity is the mother of invention.
Don't know who the father is;
probably remorse.