I've never strayed from the steps I take, and it's worked well for me, the 4 or 5 times I've been stopped since getting my CHL.
After I'm pulled over, emergency flashers go on immediately. Hands on the steering wheel, and leave them there. I DO NOT reach for anything...wallet, insurance card....nothing. When LEO gets to my window, before he/she has a chance to say anything I always say:
"Hi officer, before we get started, I have to tell you I hold a concealed handgun license, and I am armed." I then let them control the conversation as I've said what I wanted to say.
Only one time did the officer ask me where the gun was and where the wallet was. Gun: 10:00 AIWB; wallet: left hip pocket.:
The officer said: "ok, remove your wallet VERY SLOWLY. And I did. Verrrryyyyyy slowly, as in slow motion, very slow motion. The officer laughed at me for going so slowly, but that was ok. By that time he knew I was a good guy.
He stopped me for having an expired inspection sticker, told me to get it fixed, have a good day and sent me on nomy way.
I believe that having my hands frozen on the steering wheel, not reaching for anything until the LEO tells me to helps to keep the tone of the encounter non-threatening, cordial and friendly.
That's my story, and I'm sticking to it.
YMMV