It seems I'm in a half inch! Put this baby on tonight and measured at 26.5".
Today I felt a little sore... Moreso than normal, though I am going to chalk that up as it's working. Nothing more than obnoxious and nothing that I would say 'hurt.' Remember, I'm moving my ribs, that has to feel like something.
Haven't done my belly exercises since Sunday. Which is bad. You truly need to do both, and eat somewhat healthy.
Now that I'm at this tightness I notice I for even try to breathe through my lower torso anymore, it's all chest, without even thinking. Another positive. Yawns are still a bit tricky, because I can't take a deep breath with this thing on. But manageable.
Photo update.