oops i had to edit the chart i listed above.
i should have had the primary breeding dates as 10 - 21 instead of 15 - 21.

mind fart guess that comes with old age.

BTW, these dates are from a biologest report and studies listed in a book he wrote.
not of my own knowlage. i have actually seen scraping happen before the dates listed. he also says that this is an average guide of his studies so, take it for what is worth.

PT