Sorry for another saddle thread, but I have a specific question...

I recently tried out the fizik arione, and found that it wasn't right for me. It created a lot of pressure in the center and made it hard to ride for more than an hour.

About a month ago, I picked up a new saddle from the LBS--a Bontrager Inform RL.

They had me sit on this pad that measured the width of my sit bones, then recommended one of these saddles that would fit best. They had the Bontrager Inform RL in several different widths that were color-coded to match the reading from the sit bone measuring machine (my color was yellow).

When I am sitting in a more upright position, the saddle fits very well on the sit bones and has alleviated pressure in the center.

However---when I try to get into a more aero position (and rotate my pelvis forward), the pressure increases in the center and becomes uncomfortable. It feels like the contact point between me and the saddle is no longer completely on the sit bones.

So I am looking for a different saddle to relieve this pressure when I am in the more aero position.

So my questions are:

1. What saddles can you recommend that are comfortable for long periods in an aero position?

2. Is there any way to match the width of the new saddles I try to the current one I have? I didn't think that most saddles came with in different width options, so is there any way to find out if they will have similar fit to my sit bones?