The red line represents the signal created from the Taco Sauce(Conductive Product).
	Refering back to the slide with the metal signals, we can see that stainless steel(SS) phases out at the same place as the Taco Sauce.  This is why we have a hard time finding stainless steel in conductive products.
	If we look at the green line(EZ6 football)  we can see  that the length of the football can be made large enough to contain the product, yet small enough to allow a detection of the stainless steel.
	Note that there are some limitations to using the football in this manner.  First the size of the product signal may be so large in comparison to the SS, that the addition of the SS signal is insignificant.  Also if the product varies considerably, then the football length will have to be opened up, therefore a larger piece of SS will be needed to break the football boundary.