I find that I'm still surprised some of the AV girls actually do AV.
I've never really quite accepted that Yuma does AV; she seems...just too nice.
I would put Rina, Acky and Mihiro in the 'surprised' category.
Yuria, Shou, Aino, and Rio I feel fairly neutral about.
Not surprised about Ogawa, Risa, Sayama, Haruna and Kaho.
More that once, I've been watching a video clip, and thought: "My god, is Acky really doing THAT!"
For me, their nature as AV Idols didn't surprised me at all. Before I was introduced to EbiMasu, Sola Aoi was a known name in the PHL, alongside Yuma and Rio, who we call her on her first screen name, Tina Yuzuki (Some of you guys know that our country is a Maria Ozawa country...but Sola has an equal footing with Maria).
I kinda surprised at Yui/Emiri. I never thought that she became an AV Idol...but still, like Yuma, she is...well...NICE.
Still, as I known the AV Side of the Muscats very well, I saw potential to them. Mihiro and Kaho can be good comediennes....and Yuria had a potential to do so. Yuma, Sola, Rio, and Acky can be proficient singers in the long run. If possible, Sho might create a boom to the cosplaying community like she did years ago, and so as Rina.