Oakleaf: thank you for articulating the whole sit bones aero vs sitting straight up issue. I find it impossible to ride aero completely on your sitbones especially in the drops. And my sitbones do not feel comfortable on the widest part of the saddle.

I ride a fizik and hate it because I need a cutout.

Some LBS tried to tell me that your sit bones need to be on the widest part of the saddle. This didn't make sense or feel comfortable when I go into the drops. Another LBS tried to tell me that your sit bones cradle that part of the saddle in the narrow section right before it starts to widen. Fiziik and Selle SMP saddles seem to support this later position. The SMPs actually curve up preventing you from sliding too far back. I checked with a few of my racer friends and their sitbones sit in that narrow section right before it widens. They all ride Fizik or SMPs.

So this is what I tried and doesn't work:

Fizik Vesta: need a cutout
Fizik Arione: need a cut out
Selle SMP Lite 209: too wide but cutout was great
Selle SMP Glider:too wide but cutout was great
Selle Pro: way too wide but cutout was great
Selle Italia GelFlow Flite: width is good but cutout does not extend forward far enough

This week I will be trying the following saddles:
Selle Italia SLR Lady Flow
Selle SMP Stratos
Specialized Oura

If you have any suggestions or can recommend a saddle I should try, please let me know.