I'm going to have a baby seat in the back most of the time, so will rarely need to fold the seats & have a flat load area - so dropping the floor seems like a good idea - I'll try it tomorrow.

Also, can't think of anything to store under the false floor, except maybe the load cover or luggage net thing - but I figure they add a tiny bit of structural rigidity

Oh, also installed an LED festoon light in the boot roof yesterday - brighter than stock, a bit short but the contacts bent enough to make it fit okay. Order a slightly longer one than I did!