I realize this thread is almost a year old, but I've been researching a new saddle (my Jett 143 is maybe not working for me as well on my new more aggressive road bike as it did on my previous, more upright frame). I am really intrigued by the new Arione Donna. It has a relief channel down the entire length, instead of a cut-out. I think the front of the cut-out on my saddle may be causing me issues.

Anyhow, this might be exactly what someone is looking for.