Brooks or Selle An-Atomica?

[KnottedYet]

If the 143-150 mm is the SADDLE measurement, of course your sit bones will be narrower! My goodness!

Everybody, repeat after me: Measure Your Sit Bones.

If 143-150 was the saddle, then I think you are just fine with the Team Pro. Remember that all Brooks (and other similar) saddles will have a cantle plate, and you must not count that as acreage for the bones. Putting a bone on a metal plate is not what suspended leather saddles are all about... (so the actual contact c-to-c of the Team Pro is 140 mm, as the cantle plate is about 1 cm wide)

Brooks take about 100 miles or more to test properly, and some fiddling. Wallbike's 6 month trial is pretty sweet, and Bill Laine is great about helping over the phone. There are enough women on TE who ride Brooks that you could probably get questions answered here even easier than calling Bill.