OK, here's what I could do for comparison. All four photos were taken with the bike on the side stand.
The first two photos are taken from the right side, with the camera lens aligned with the 33" mark. Stock saddle, then Baldwin.
The second two are from the left side, with the base of the phone touching the handlebar. Stock saddle, then Baldwin.
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Sitting on them one after the other, my knees feel like they're bent about the same amount. The Baldwin is noticeably firmer.