As with most things like this case law and precedent work better so here's only a few options, readily availablenfromgeorgia packing; just for starters:
http://www.georgiapacking.org/caselaw/gayvstate.htm
^Pat down to verily possession of firearm not illegal
http://www.georgiapacking.org/caselaw/megesivstate.htm
^disarming a citizen not illegal
http://www.georgiapacking.org/caselaw/leevstate.htm
^ burden of proof for CCW is on the carrier
Case #1 was before SB308 was passed, and also indicates the subject began running after being confronted. It would say that gives RAS for a Pat down. Once again, before SB308 was passed, concealed weapons were illegal and your GFL was an affirmative defense. It is not that way any more.
Case #2...Bad guy was stopped doing 97 in a 55 mph zone...I would think that gives good RAS for a stop!!!! And then to top it off, there is the smell of marijuana coming form the car??? Again, pretty good RAS if you ask me.
Case #3...Again....pretty good RAS if you ask me. The victim, an officer, was shot by the bad guy. He ran, and then was caught later on. The search was based on details given by the officer and other witnesses on scene.
None of these have anything to do with the original question. Can an officer stop you, walking down the street, and make a Tier II stop because he believes you are carrying a concealed weapon???? Without RAS, the answer is NO. In all of these cases, in my opinion, an officer would have had more than enough RAS and PC to make a stop, and search.
We are talking about an officer stopping you, detaining you, and demanding to verify you are conducting a legal activity, just because he wants to.