Just curious

[Drew]

The trick to the ah-so is to rock the prongs into the space between the cork and bottle and not push the ah-so, that's why one prong is longer than the other. If you push, without rocking, you risk pushing the cork into the bottle. Once the ah-so is inserted, turn the cork while pulling. I think the downfall of the ah-so is that it seems to shave off little bits of cork that fall into the wine. Here's a picture of a rabbit type pull screw.

http://www.corkscrew-mart.com/rabbit-deluxe.html

Drew