One of the Best Nicking Articles Ever Written
Nicking has value, but not as much as some people who want the easy breeding answers think. Here's the link:
Understanding Variation in Breeding
Quality in breeding cannot be assured. Defects cannot be eliminated, by simply acquiring expensive mares or breeding to expensive stallions. Though hard to understand, variation uniquely affects Thoroughbred breeding quality. Statistical variation in Thoroughbred breeding is extreme and can be described by studying a few factors and examples.