Slid out

[mikehan]

What are the pros and cons
of using support Jack my slid out?

[chaps2018]

CON: My manual specifically says not to use supports on the slides.

[KirkedOut]

Scenario#1: You put supports under the slide out, while you're away or sleeping the tire(s) go flat for one reason or another. The supports aren't going to move as your main camper lowers and does some serious damage to your slide out.

[guy65]

pro's: less pressure to the frame.
Con's: like already mentioned- if sitting for a longer amount of time, the tires loose air, the camper will lower, but the jacks don't.
biggest con: I truly believe, 99% of the people using them, have no idea what they do and how, damaging more, than doing good.

If I would have the camper stationary on a permanent lot, I would set the frame on brackets and get the wheels off the ground completely. This would be the situation, where I would use support brackets for the slide, because the camper would never move again anyway.
Other than that- neat gimmick to make the company rich, who sells them.
not on top of the "have-to-have-list".

[Gigattime]

Pros: not needed in the design/engineering of your unit. Can take the money saved and use it somewhere else IMHO.