Never mind Biellmanns. I vote for Ina Bauers, especially Shizuka Arakawa's. The About-dot-com site uses both photo and text about Shizuka to illustrate this move. The article further says that Japanese fans don't call it an Ina Bauer but instead call it "the Arakawa way." I completely agree! (Interestingly, though, the article says that what makes an Ina Bauer isn't the backbend but the position of the feet on the ice. So non-backbenders such as Gordeyeva and Kwan are doing a perfectly fine variation of the move.)
Biellmanns look like a chiropractor's dream move. They can't be good for you.