you really don't need tips, you need to go play a few games, get killed, and develop your own play style. you cant base your game on suggestions, you need to learn the game like you learn to swim, jump in and swallow some pool water.
Aside from that, just remember speedball is a different mentality than woods ball. Wood games are more methodical, and rely heavy on strategy and generalship, speedball is about just being good at what you do, and playing the best game you can. You have to play at a much more intense level, and completely lose yourself in the fury of the moment.