No, maybe I am using the numbers wrong. I am thinking 1-10, with 5 being a medium, maybe Swiss Army Knife weight of pull. The Proto has a heavier pull, but the others are on the firm side of average. Sorry if I confused anybody. All these open and close readily with no concern of breaking nails. I guess I tend to rate them a little heavy, thinking I wouldn't want to surprise someone with a knife that is hard to open.
Thanks,
Danny