I spent a lot of time last year in AZ and I saw open carry everywhere off post. There were a few restaurants that posted no weapons, but I don't patronize those kinds of places.
I vacilate on this issue, but I'm coming to the conclusion that it would be good if:
1. You were required to take an additional class on the specific issues concerning open carry - like weapon retention, holster choice, etc;
2. You were required to place your SDA permit in plain sight on the belt within a set distance, say 2", of the front of the holster;
3. They redid the permits in such a way as to make them easily identifiable to LE indicating that you were "OC certified". I like the idea of remaking the SDA ID rotated 90 degrees like an underage drivers license to make it readily identifiable at a greater distance.
I'd even be willing to pay another fee to eliminate the administrative costs for the initial issuance, but would expect it to be no additional charge at renewal.
My scenario:
Johnny gets his SDA license;
Johnny take another class conducted by local, county, or state LE
Johnny pays for new license (which extnds original expiration date)
Johnny gets new SDA/OC license, buys retention holster and permit carrier
Johnny no longer wears windbreaker with his bermudas in August.