Brian, We have been going through a keg in about a month, been supplying my tailgate party. I have been given the word by my SWMBO that I am not to run out of her brew. I can have an APA or IPA ready in about three weeks . My dark brews, nut browns, porters and stouts need time to get ready, I made a mistake of tapping one to early. I have a couple brews aging in the keg, a huckleberry saison and barley wine.
My proceedure is to allow brews to keg condition for about two weeks or more. I will then chill in a seperate frig and then attach to co2. I seal my kegs at 30 psi and test for leaks. My aging kegs, I will hit them about once per week with a blast of co2. Hope this helps. I can't believe that I have brewed 30 plus 5 gallon batches this year.