Belt doesn't mean that much; you should know that by now. I got into Sigma as a blue belt. :v
I got in Sigma and I don't even know my belt, but around brownish I think.
But yeah, everyone has his own skill, apply to a clan you think cool and present your skill(replays, art, etc)
If you have any other special talents (IE art, textures, ect.) you can post in the Juice thread Application Centre. You can say I'm your referral, I suppose.
Who knows, as long as you're active, maybe you'll get in.