Do I need use one or two X-chocks? I have always used plastic wheel chocks to keep TT from moving when camped but like the between dual wheel X chocks.
X-Chocks are meant to reduce the rocking sensation by preventing minor rolling of the wheels. They are NOT meant to replace actual chocks, which are meant to reduce the trailer from rolling away.
I use Fastway wheel chocks, as it does BOTH. It is an actual chock that prevents the trailer from rolling away and it reduces the rocking sensation by not allowing the tires to have that minor roll.