Somewhere there is a picture of the topside of my B67. they are very "T" shaped, narrow narrow nose, abrupt transition to sit-bone perch. (the whole B66/B67/B68 line is like that)

Mine has never rubbed me raw like my Serfas Niva saddle.

If you get a Brooks from www.wallbike.com you have six months no questions asked to try it out.

MimiTabby has experience with both the Brooks and the An-Atomica. (she prefers Brooks)

Can you email SusanO and ask if you can still return the An-Atomica?