Ours used to be wobbly. I adjusted the feet so it sits level, then had the table frame welded so it no longer folds down. Since we don't use that spot for sleeping, no problem, and the table is rock solid.
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-Scott, DW, DG, DB, and DD
2011 Passport 2590BH
2009 Ford F150 SuperCrew F
X4 5.4L w/Max Tow