I think that the Randomizer has a bug. The Randomizer is a fantastic tool, which I often use (some of Topaz PlugIns do have it as well).
The great thing in FF (as opposed to Topaz), is that the strength of the randomization can be regulated through the popUp menu besides the button 'Next variant'.
Now the bug : after going through some variants in 'High' or 'Medium randomization' mode and hitting upon something I like, I switch to 'Low randomization' mode, in order to stay near the settings I like. But the next randomization step is in the mode that I had selected before (High or medium) and only the second time I click in Low randomization mode, it is carried out in Low mode. So, after having arrived at something I like, I go to Low mode and click again, which takes me far of what I had and only starts then to make variants in that neighborhood, but the variant I had liked (to work on further) has disappeared.
I though I had come up with a remedy : sel ect Low mode, make a new variant (which is far off), click 'Back' (which brings me to the variant I liked) and click again 'Next variant'. It does not work. Also here, the first 'Next variant' takes me far from home, only to make variations in Low mode then.
The same goes with adjusting the Settings until something I like and then applying Low Randomization. The fist Variant is again miles off the settings I had adjusted. Only fr om the second variant on, the changes are small.
Beat
The Stone Age did not end because they ran out of stones. Niels Bohr