Stands/Jacks under the slide outs

[drhuggybear]

We are new the "slide" world so please bear that in mind when answering the n00b question. I have seen that some people with slides will put supports or jacks under their slides and others do not.

Obviously this is probably a lot of opinion but what are the pros/cons of doing this?

[camp-n-family]

One con I've read is the risk of damage. If the trailer shifts or sinks at all and the jacks under the slide don't you may damage the slide.