i also posted on your WH post.
DON'T use those jacks for leveling or raising the trailer!!!!
i bent our first popup's frame doing what you're doing before i realized i wasn't supposed to use them that way.
they are only for stabilizing.
get a BAL leveler for that. one of the best investments for a single axle trailer owner.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC