Race Season's Over - Pairing up Young Birds

I had previously thought you could simply pair up "fastest" to "fastest". I've seen guys that did that with success. But this article has me rethinking that. The author says out crossing causes chaos. Very interesting. I DO have two really large, apple bodied Houbens from Mark that are from the same family. Both are blue checks. I'm not a fan of blue checks and blue bars but I like their other attributes. Same for a pair of Ganus Janssen blue bars. Both are HUGE - very tall birds. They are also from the same family. So there's my first two pairs. 2619 and Splash are both throwing pretty good racers - that makes 4 pairs. That big old silver Ganus (I assume all birds from George are from his initial Ganus stock) always produces first bird on the drop. So, pair him with his daughter (his mate died). That's 5 good pairs. The rest, I will use on the old bird team or use as foster parents. So, that's the plan. I'm ready. Too bad I have to wait until December to pair them up and let them set eggs. Right now I really need to get them separated and rest them up.