corks

[Kcwhippet]

Pinot,

Sounds like you may want to invest in a better corkscrew. All the winged models I've seen have what amounts to a screw, while the better ones have a helix. The screw tends to drill down through the cork without getting a real good grip, while the helix type gets a tremendous grip. IK's suggestion of a Screwpull/Leverpull is a much better choice. In fact, the first one you mentioned is better than the wing job for getting out a weak or damaged cork.