Noisy Fractal Rendering

I'm currently working on some fractal scripts which produce extreme range output (much like strange attractor fractals) which is clamped to either 0 or 1, and the real "magic" takes place in the super-sampling process: here the actual visible gray tones are produced.

My problem is that I can't do tone mapping because the mapped colors are either from the 0 or 1 area in the color gradient (because the super-sampling that produces intermediate grays is taking place post everything).

So how would you get around this problem? By writing a custom super-sampling step?
The only semi build in way I can figure out is to use a blur at very low radius and then enable anti-aliasing for bitmap based components, but AFAIK this is not a setting stored in the filter.

Perhaps we need a new result mode: Gradient Mapped Result, much like how the elevation gradient works, but the mapping is done post super-sampling.

Here is an output example, first half shows super-sampled output, second half shows direct output:

Is this script published anywhere? That output is pretty dang cool.