I was just thinking about this today.....I was going to post something too. I need a capo for my classical guitar but don't know if I should be looking for something specific or just get any capo at Guitar Center.

I was researching and figured out so far that I either want a Shubb or a Kyser. The Kyser seems to be quick, easy, and reliable compared to other clamp designs, but I'm worried about the spring losing tension over time. Also, since Kyser acts like a clamp, there is uneven tension among the strings. It's like a giant clothes-pin.

The Shubb is what I'm leaning towards right now seeing as how I can adjust the tension so I have more control over any tone imperfections.