The Sit Bones?

[DebW]

thanks!

Should the sit bones then be centered in the pad on each half of the saddle?

I believe the sit bones should be on the outer part of the padding for road riders. You will be bent forward enough that putting your sit bones in the center of the padding would prohibit your thigh bones from moving freely given your pelvis angle. You may not be sitting on the very back of the saddle, but on the forward edge where the back of the saddle begins to narrow. In other words, exactly where you end up sitting on the saddle may vary from saddle to saddle, so the base width doesn't tell you everything. You have to try it.