Corkscrewing/wobbling is more typical behaviors for the Spider morph. I haven't heard about that being the case for Caramels. Caramels are known for their kinking... How long have you had him, and did the seller make you aware of its behavior?

Check out this link: http://www.youtube.com/watch?v=zA4lBpoPIWY

Is this what your Caramel does?