Well Xiao ^^ Actually, I do Shudokan. Commonly mistaken with yours Xp but Shudokan's name doesn't have a cool a meaning or origin =/ It was just named after the first dojo it was taught in (Shudokan = Hall of Training). But you know what they say, Karate is Karate! =D
As for tournaments, I had only known of the ones under the CKA, I'm glad to hear there's more! ^^ Unfortunatly, Estes in Winter means no unnecessary expenses >.>; So I couldn't compete until the summer.
3rd kyu here brown ^^ But if I remember correctly, purple was probably my hardest test, and probably the hardest of my time in the dojo, going by rank. I'd say it was Orange when I started really comming to terms with the fact that I wasn't as tough as I thought I was, but purple was when it started hurting physically! XD
edit: @ Nogardous~ An important thing for us all to keep in mind =)