Originally Posted by -Lukas-
You guys seem real light for 17 year olds, I'm 17 and I'm 155 (And no, I'm not fat at all, lol)
Anyways, advice...take it to the ground. When's the fight? Do you have enough time to work on your ground game?
Double leg isn't the only takedown around, get someone competent to teach you a few more takedowns or throws (single leg, high crotch, back arch (kinda hard to learn right away), uchi mata, drop seionage, soto makikomi, etc.)
And work on your submissions game. Know how to do at least one or two submissions from: guard, mount, side control, north-south, and back mount (kinda obvious, but try to learn something else beside the RNC)
Good submissions to know that are pretty easy to learn and are effective are: guillotine choke (but learn how to do it PROPERLY, most people end up with their forearm around your throat, which does almost nothing) kimura, armbar, RNC, triangle choke, omoplata (also works as a great sweep), brabo choke (if you know how to do it right), and arm triangle. I wouldn't try a keylock, because those are sorta hard to pull off if the other guy is stronger than you.