When we have a range/score from 1 to 10 we should decide what is the heaviest/important/longer/bigger/harder on one side and what is the lighter/less important/shorter/smaller/easier on the other. Then we apply this for all our range/score.

I found a little tricky that on one selector 10 is easy and on the other 10 is important.
I understand the mathematic thing, but still it make me really uncomfortable. I beleive could be a way to solve this mathematically.

Have i the only brain that felt like going up using the stairs that are going down in that case ? 😀