Actually, the SO has 14 days for their part of the processing...local checks. Then it goes to the OSBI, and THAT is when the time starts. As the SDA states, the OSBI is SUPPOSED to issue within 60 days of recieving the application, unless something shows up that needs more research, in which case they (OSBI) has a total of 90 days. If at the end of that time they do not have the research finished, they are (as per the SDA) required to grant the license, and continue checking. IF, after further processing, they find that the license should not have been issued, it is to be revoked. In any case, the SDA states that the license is to be sent to you via First Class Mail.
Of course, just because the law states it this way doesn't mean the OSBI/SO are actually FOLLOWING the law.
In my case, however, things couldn't have gone better. Turned in the app at the Oklahoma County SO on 9-27. I decided to pay the OSBI fee via my card, and they ran that 14 days later. Today (11-10) I had a letter from the OSBI stating I was approved, and my license was included. I was, however, expecting it to take longer, as they mentioned at the SDA class that the current backlog was taking about 120 days.
Okay, things could have gone better by not even having to apply to carry (Constitutional carry states, I envy you), but given the restraints we have in OK, I think it went well for me.