That was part of the reasoning behind the one paint parent rule too yet that is now gone.
The fact is if APHA offered more classes for solids or let them into performance classes it would improve the registries as a whole. By changing the name of the solids from breeding stock paint they are trying to drive them out. The fact is that they are cutting their nose off to spite their face. If they allowed these horses in to show prove them out and use them at the end of the day it would improve everything. Yet is just easier to toss out the baby with the bath water then fish the kid out.
-I'm so busy... I don't know if I found a rope or lost my horse.
-An Armed Man is a Citizen an unarmed man is a subject.
-Where ever free speech is stifled Tyranny will reign.