I was thinking of learning the song to improve technique and speed... good idea or not?
My other choice was Technical Difficulties. But I think Castle Dragon is easier.
I'm not sure how it wouldn't be a good idea? <_<

Seems to me like perfecting any [challenging] song would help improve technique and speed (probably more-so technique, as speed is more of a time thing).

Great song choice by the way, good luck.
Yeah, I figured that CD is a song that nobody really knows.
But I mean that in the best possible way.

I was also thinking Forbidden City by Marty Friedman was a cool song. There's just something about it that moves me... But maybe that's a bit too hard for me right now.