I can't imagine why you would want to use the 40-year-old HSc for every day concealed carry. While it was perhaps good for that purpose in its day, by comparison with the current market, it is a dinosaur!
My personal preference would be the Kel-Tec line whether its their P-3AT in .380 or, even better, their P-32 in .32 ACP. You would not believe how light and slim they are. I have handled, carried, and fired both with perfection.
As for your HSc, I have heard a lot of good things about Cerakote. You can look them up on line including someone in your area qualified to apply it. Your probably looking at $150+ to do the job.