How To Install Britax ClickTight Harness-2-Boosters In Booster Mode W/Lower Connectors (after 9/22)

Where'd the harness go?

This should show the storage of the harness.

So should we anchor the seat in booster mode or not? The manual says not to but this seems to suggest you should.

Please put video instructions for harnees 2 without clicktight. As i installed as tight as possible but still base moves more than 1"

That click tight thing sure looks nice. The new Britax grow with you booster we bought only has this flimsy plastic pan which hides the lower anchor straps/buckles. These paper instructions are seriously awful... They say not to use said LUAS system if you're using harness mode and if the kid weighs a certain amount but it doesn't say why. Why would the LUAS system be safe in booster mode but not harness mode? I can move the seat all over the place in harness mode with the belt strapped tight and the back tether connected, but when I do use the LUAS it's more snug. Even still, if I pull forward at the cup holders, I can get the whole damn bottom to pivot out from the back of the seat by almost 2 inches. We have another regular Britax car seat and it does not move a millimeter, it is one with the vehicle's seat. This booster thing is floppy jaloppy. Might return it.