Chapter 11 par 3 of the Flock book states:
3. The committee should be careful to allow sufficient time, perhaps many months, a year, or even longer, for the disfellowshipped person to prove that his profession of repentance is genuine.It doesn't specifically say 6 months, but it's obviously implied that 6 months would be a minimum. In the last decade, I've not seen anyone reinstated in anything less than a year.
During the time I was df'd, I did research about the time between writing of 1 Cor and 2 Cor and I had hoped that since the letters were written in the same year and that my sin couldn't be any worse than the one mentioned in 1 Cor 5 that I would be reinstated in less than a year.
Nope, didn't happen.