Good job Gary! You can sure see the consistency in the 3 bulls!
I've done some of this with my DRC based females with pleasing results at least on the female side. It is difficult at times to convince people of the bull "type" that most consistently produces these good females however. From what I see, you certainly have a cow herd worth replicating through line-breeding.
I AI'd most of the CPL6th daughters back to their sire last spring. It's early yet, but so far the results look very promising. My plan is to put their yearling 1/2 brother (who is out of a 7 year old cow that meets my near "ideal" i.e. udder, feet/legs, CE, mothering instinct, disposition, etc), back on them this Spring. I will try to get some pictures of the offspring from the sire/daughter matings over the weekend. My belief is that this is the way to build consistent predictability in ones own herd. It is no short-term project!