Got home Saturday and there was a Whites Super 12 on my porch. Clamped it to the MXT and went to the old farm house to try it out. Found a '44 quarter and a pin with "US." inscribed on it. It seems to me that the pin point is at the flat at the end of the mounting bracket. Is there anyone out there that has spent time using the Super 12 and can give me their opinion of how it worked in the field.