While I've never done it, I have seen it done lots of times. Throughout my time in Taekwondo there was a Karate class at the same times in the same leisure centre, so we saw a lot of each other.

Also, when I was younger my friend did Shotokan whereas I chose Taekwondo.

It always seemed far too rigid to me. Every movement was blocky, deep and stuttered (even their free sparring).

I've seen some of the top guys doing Kata (on videos) and it looks great, but even decent shotokan karateka doing sparrying looks stiff to my eyes.

Now, I'm not against all forms of Karate (although my preferred martial art is Taekwondo, I can appreciate other arts) - give me a good Kyukoshinkai competition to watch and I'm there :-)

Anyway, sorry it doesn't answer your question directly, but no-one else had posted, so I thought it's better to write something than lurk :-)