Trailers bounce. Not an opinion, a fact. Many (most?) of us with TT and 5ers have had drawers open and cabinet doors open while traveling. Before I started putting velcro straps on my cabinet doors I had a cabinet door open and some glass bowls bounce out (two broke), another time I had a box of detergent bounce out and spill (what a mess), and frequently had a drawer under the oven open, and sometimes the pocket door between the bedroom and living area opens even though it has a strap I snap before travel.
From the truck it appears the 35' 5er is riding smoothly. Not the case.
And discrete means nothing concerning your safety in case of an accident.