Try this thread to figure out some basic rules of genetics:
http://www.ball-pythons.net/forums/s...ad.php?t=52847
Essentially, you have to know the parentage of an animal to know what, if anything, it is het for. And the percentages only mean that the animals in question is a POSSIBLE HET.....meaning that it MAY or MAY NOT be het for some recessive trait. The precentage numbers merely indicate what statistical chance that animal has of actually carrying the recessive gene.
As for ringers....unless the animal is KNOWN to be het for pied...or at least possible het....then chances are it is simply a normal with the "ringer anomaly" that has no predictable genetic influence.
In other words...if the animal is "just a ringer" with no other genetic information...then it will most likely simply be a very cool looking normal. BUT...it never hurts to breed it to a known pied or het-pied to see if something fun pops out!