I just recently picked up a Peterson Strobostomp and I am pretty happy with it except I can't figure out how to read it. Mine was used so it didn't come with a manual, but I downloaded one but it didn't have any info on actually how to read it. Like with the Boss or other tuners, it has the LED that go from side to side and when it hits the middle green LED then its in tune. But with this one it has that strobe stuff on the side but I have no idea how to read if its sharp or flat. Can anyone help me out with this???