pre·po·ten·cy (pr
-p
t
n-s
)
n.
1. The condition of being greater in power, influence, or force than another or others; predominance.
2. Genetics The ability of one parent, variety, or strain to transmit individual traits to an offspring, apparently to the exclusion of the other parent, variety, or strain.
The American Heritage
Dictionary of the English Language, Fourth Edition copyright
2000 by Houghton Mifflin Company. Updated in 2009. Published by
Houghton Mifflin Company. All rights reserved.
Fred, this is the definition I found, is this what you have in mind for discussion? I am in

Finding or developing a bird capable of stamping itself on its offspring, regardless of the qualities of the other parent, is an exciting prospect. Taking it to the next step, that is, creating offspring that not only look like the parent but can reproduce themselves in like manner, would be a stupendous accomplishment. As long as the progenitor is healthy and typey.
In other breeds, linebreeding is generally considered the path to this outcome. Is it so in chickens as well? I would think one would have to have thorough knowledge of the underlying genetics of one's stock, meaning possibly several test breedings to confirm what is or is not hiding from you phenotypically.