I flushed a cow several years ago with sexed Grandmaster semen and we only got 3 or 4 embryos but did get a live calf out of those. The Vet said it was probably the use of sexed semen was the reason for a poor flush because there were several unfertilized in there 6 I believe. I`m sure that was 3 ml semen count back then and the technology was relatively new. Have any of you flushed using the 4 or 5 ml semen ? Has the quality gotten better in recent years I`ve heard that the process has changed just not sure if I should risk it again with the cost of the flush and the $200 a straw semen it adds up pretty quickly.