I did a Centennial blonde (not Biermunchers) in 7 days grain to glass. Fermentation was done at 6 days and force carbed over 24 hours, had a very nice drinkable light ale the next day. Yes it did get better over the next week, but I really like "fresh" tasting beers. The longest I've let a beer go on primary was 3 weeks for a variation on Yooper's Oatmeal Stout last fall and it didn't turn out well (needed more oatmeal) and didn't age well. I like "young" beers (please don't report me to the local authorities).