Cairo Santos is the best kicker in Bears' history. In Year 13, he thinks he'll be even better.

CINCINNATI — No matter how long Bears kicker Cairo Santos lasts in the NFL or how much he accomplishes, there’s never a time when he feels he can exhale. That’s the residual effect of spending the majority of his career having to prove himself. That pressure has been there the entirety of his seven-year run with the Bears, even as he has steadied them at one of their most problematic positions — until now. It appears he won over coach Ben Johnson last season after some early hiccups, and the…