Gobbler, hold on. I never said you will move the timing or beginning of the breeding dates, but while correcting the sex ratio and age structure you will most certainly shift the average breeding date up by eliminating the second and third estrous cycles. I've seen it show up in DMP and other data collected. Some biologist have suggested that you can move the breeding season ahead by correcting badly skewed ratios, but I'm not one of them. Most of those guys went to Auburn.