Interesting idea. I've seen the first of these videos before, and I always thought "He wasn't THAT far off getting a yes". Of course, the vast majority will say no, but... this guy is pretty average in looks and he hasn't great fundamentals nor impeccable confidence when he asks the girls.. I'm thinking you might be able to take some girls home with this, if you do it like you're explaining here.
Would also like to see experienced guys' opinions on this.