What loop setup are you using in the video. Old school, floating loop, ???
Floating loops, my favorite way. It allow me to slide the loop / o-ring down or up which adequate takes tanks more towards the legs or head. Easy to put on / off.
Simple and efficient with no extra hardware.
Those pics were made for light mounting question purposes but you can see the loops also. If needed I will post more pics, just ask exactly what is needed.