Thanks @AgusPG, I didn’t realize you were deducting from 1
If you want a wider range of numbers, there is a thread in the community using other calculation methods. From memory, euclidian gave the largest range of values.
@ruby_coder and @curt.kennedy talk about it on this thread
We used a similar value of 0.79 for our cutoff (which is the same as the suggested 0.21 when you subtract it from zero)