Our dream dinette has two supports. Not sure about the "synchronize" theory, but ours works... sometimes clunky but it works. Since it also doubles as a desk, I'm glad it has two supports, it is otherwise a very wide table (41.5") that I am afraid would sag on either side when used with our laptops, printers, etc. if it only had one support in the middle. For ours, to put it down both levers must be turned and then push on the table near the center near the wall to get it started.
2016 Thor Hurricane 35C with pups Piper and Annabelle
2013 Ford Fiesta toad
FMCA - F457085
Blog - https://traversity.us