Maxi,
I have the Koobi pursuit saddle. The web site says that is their women's specific saddle. All of us are built different so it might take a a few tries to get the saddle that is right for you.
By the way, I am also a middle-age rider of 58. My daughter once was so kind to remind me "Mom, you're not really middle age anymore. How many 116 year old people do you know?" Oh well her turn will come, she's already 30 this year! I know at this point in her life there is no way she could ride 20 or 30 miles at a time the way her old mom does!
I hope that whatever saddle you try it works out well for you.
Sandy