I've been wondering this for awhile. Everyone's ideal studio, from what I've been reading on this board, would include at least 6-10 different mics and 3-5 different mic pres (probably the more, the better). How do you know which mic/mic pre combination works best for a given singer? Surely you wouldn't have that singer try every mic/mic pre combination. If you did that at a studio like Ocean Way, that singer could burn 1 day's worth of studio time finding a combination that sounded best on them.