Last time I checked, BAA had 4" levelers.
With 3" levelers, you can move the nut on the front legs from between the leveler and leg to above the leg. More often done to get the most pitch you can out of 3" levelers, but can also be used to keep a game from teetering.
No doubt accelerometers could work, but what's been working for generations now is both cheap and ridiculously reliable (assuming the operator has a clue). Manufacturers should put (test) them on LE models, not likely to go on location. At least two lock stepped devices with error correction software please. LE buyers would appreciate the bling.