We'll have to agree to disagree. Sorry. Just between my current fleet of mopars I've run half a dozen different brands of shocks, in suspension set ups that range from bone stock to basically full autoX. All run on the street. Even the difference between bilsteins and hotchkis fox's was far more noticeable than the battery relocation, and that was by far the smallest difference between all the shock combos I've run so far. Even just running on the street.
And tires are an even bigger difference. Even a small tire compound change can make a big difference, let alone width and profile changes. The entire suspension set up has to change around a decent change in tire compound.