I bought a flanger that evidently isn't set up right. i am adjusting the top roller so that the lip will be deeper, as it was only 1/8" deep when I got it. I am adjusting the top wheel out away from the sholder that is turned on the bottom roller to make the lip that it forms larger. Does anyone know: Am I doing this correctly (Lockformer Manual doesn't say how to adjust for a larger/smaller flang)--Also, what is the lip supposed to measure in order to properly be marked with one of those marking tools (that I don't have one of) and to properly work with a Pittsburgh seam.