Ok, still trying to wrap my head around the concept But getting there. Hats to those of you here who understand all this

So I got it to run.
1080ti on Windows
Bat file >> Kangaroo.exe -t 0 -gpu -gpuId 0 -ws -w save.work -wi 30 input.txt

Starts off at 200Mkeys/s and then continuously drops

Also why does this algo seem to only work for bit ranges that are multiples of 5?