I'm about 6 hours into the Bokeh suede pads on the AC and so far there are two differences I'm noting consistently from track to track compared to the Auteur suede:
1) There's a bit more upper mids and lower treble with the Bokeh pads. Vocals are a bit more forward, and overall upper frequencies are more present overall.
2) Soundstage is larger and more diffuse. The Auteur pads have an intimate stage in comparison, though I wouldn't call it small. But overall staging is more expansive with the Bokeh pads.
Those are what stands out the most between the two pads. They're different enough that you can make an argument for having both on hand. I think the seal is better with the taller Auteur pads, and the bass kicks just a touch harder, but bass-wise they're very close IMO. These are great pads for those who feel the vocals region of the AC are recessed or lacking, but find the Caldera suede pads too neutral sounding.
Mounting the Bokeh pads on the AC took a bit more effort than a standard pad, but nothing too crazy.
Here's my visual take on where the pads I've tried on the AC current sit:
EDIT - I'm going to try the Auteur solid lamb pads on the AC now
My instincts say it's not going to work but lets test it!