Thanks for a very interesting article. What I find interesting is the difference between PA and EDP compared to DGV and EDP. If we just had PA for young sires and no genomic data then Stanton looks good 3rd in the list and 300 points behind the top herd, Velthuis. However, with a 700 point drop to the expected daughter performance, they're now 900 points behind Velthuis. Whereas if we have DGV we see an 800 point difference, which is much closer to the expected 900 point difference.
The use of genomics should mean that the AI companies look at different herds than they have been used to with only Parent Average data. So, the hot house herd effect should be less effective in getting sires sampled.