Hi Al, There are fractal artists, fractal explorers, fractal formula creators and fractal formula experimenters who tweak the established formula parameters. Not all of us are member of all these groups. Several years ago, Jim Muth invented the MandelbrotMix4 formula and has posted over 800 images in his FOTD using it. It is not easy to find good parameters for this formula, or to tweak them. It is a technique that is gradually learned, and Jim is a master at it. Only rarely has anyone else posted an image that uses new parameter permutations. I consider most of my MandelbrotMix4 images to be sort of a partnership with Jim: He has found a combination that works, and I explore deep regions of his parent fractals that nobody else (including him) has seen. They are definitely as good as any parent fractals I could create myself, but they are each a springboard for diving widely into the fractal depths. And Jim's MandelbrotMix4 formula is far simpler than your Multifractal formula. You have shown great creativity in designing this formula and making good use of the limited parameters that Fractint provides. It is a great formula! But, in doing so, your using it comes quite naturally to you due to the time you have spent developing it. But it will take others some time to get familiar with it, and some will. And you yourself said that tweaking the parameters may take hours to come up with a good image. I'm glad you posted your tutorial - it's quite legible and informative. But as an artist, or someone who wants to explore interesting areas in already posted images, it is more exciting to just go explore those areas and let others find good parameters for other parent images. We don't all do the same work in fractals - we work as a team. Almost all of the images that I've posted lately have been deep zooms into some of your images - very different patterns, different colors, etc., but I would have never come up with those identical parameters that you did. So, it is teamwork. And if you are the only one here (and I doubt that very much!) to take the time to learn and make use of this formula tool, you are still doing a great service by providing images using the tool directly, as those who use it indirectly. After all, each parent fractal is mathematically is equally as complex as the entire Mandelbrot set and needs some exploration. So be patient. Your formula can be used as great tool by those who wish to come up with new parameter combinations, but it can also be enthusiastically used by those who just wish to play with the zoombox. Cheers, Lee