I would suggest going to the Lambic/Wild Brewing section. There are people with a vast knowledge to anything funky/sour, as well as posts that should answer almost any question you have. On a side note i have brewed a few sours now but with the long fermentation's i am not to the point that i can say i have been successful yet. I keep separate tubing and fermenters for my sours since as much as i sanitize i still don't trust my self and would rather play it safe.