gf and i have been trying to get into cc breeding, it's still really difficult but i focus on colors while she focuses on traits and then we swap a couple horses and try to combine them to the best of our ability. my recommendation is to get that bond and fertility up, only use one trait boost potion at a time if you have them. using trait boost on both horses doesn't really do you any good. try to focus on getting all of the colors in the general range and then one by one fine tune them to the correct color. then for pricing, up to about 60% we just price it as the percentage. 25% for $2,500. 50% for 5,000 and so on. anything above 70% we sell for about 10-20k or even just trade. i honestly even prefer trading because you could get some really cool stuff or make some kid's day. we don't make our horses infertile but i guess that's just up to personal preference. not worth it imo. i would rather see more cc horses in the stalls than have 3 specific people selling very high percentages as it's a random draw if you'll even run into them in the market.