Hi Ed, was wondering when you use a single 121 are you usually dead center to the speaker for placement or do you do the cone seam. I've found when I use both a 121 and a 57 I go for 3 and 9:00 at the seam for placement but when I use only the 121 I have to place it dead center for more hi end. Also do you angle the mic slightly or straight up? Thanks. Kelly.