With our 4 point Big Foot Leveling system, which did provide some stability, we decided to keep our stabilizers on the front and back to keep interior & wind movement at bay.
Two friends of ours have the 6 point BF system and one couple is perfectly happy with just the BF while the other couple said they are glad they kept their stabilizers.
I think some of it depends on how much movement bothers you, the lenght of your rig & whether you travel on occasion, several months a year or are fulltimers. As a fulltimer, I want my 38'Carriage as stable as possible. Hugs, Di