I am very surprised that a corkscrew is floppy in your presence Chrissy, I mean your singing gets....oh nevermind. I really enjoyed "Hallelujah".
I agree with Breezy that it is most likely the backspring. I have changed a couple of Flair backsprings and it you have the wrenches it is not that hard. Getting the backspring is another story. I would NOT send the tool in to get fixed since they will likely send you something lesser than a Flair.
Bruce