Okay, so I now have 110 miles on my new Zero X - 14 Tuesday, 21 Wednesday, 30 Friday, and 45 today (Monday). Still not sure. On the first ride, I was very aware of my sit bones for the first 2 minutes or so - then it faded away, and the soft tissue area became noticeable (not necessarily painful, but the thing did not just "disappear"). On ride #2, the sit bones hurt for the first few minutes (less than a mile, I'd say), and the discomfort seemed to shift between front & back - still never too bad. Ride 3 was pretty much the same. Very aware of my weight being on the sit bones (which is good, I guess). After running for two days, today's ride started out better - no sit bone pain at all (actually, never really felt them at all today). Gradually more soft tissue discomfort, though. I stopped and lowered it about 1/8", thinking I seemed to be rocking ever so slightly. Still had growing discomfort over the course of the ride, but much better that my last couple of saddles. Also greased up my chamois with a sample we had of Chamois Butt'r (results didn't seem much different from some Udderly Smooth samples I've used this week). When I got home I raised my handlebars ~1/4", and tipped the nose down slightly, thinking my weight is still too much on the front. We'll see. I really want this to work, so I'll continue tweaking.

I did some rough measurements, and my 3 year old Butterfly TI measures about 6.5" wide, not the 6.1" that the current Terry catalog specifies (maybe they've changed it since then?), and the Zero X is about 5.75", not 6.0". All in all, a 3/4" width difference, rather than the 0.1" I anticipated! I do like this shape better (not constantly having to push myself back on the saddle). Not so sure the metallic pearl color was a good choice - already discolored on the sides, and saddle soap isn't taking it off.