The problem with these scales is deciding what is a 10 and what is a 1. I've seen people put these on their CVs , what they tend to do is put the language they

The problem with these scales is deciding what is a 10 and what is a 1. I've seen people put these on their CVs , what they tend to do is put the language they are most comfortable with as a 9 and then scale everything else according to that.