Get traffic in front, looking for deflections and rebounds. Cycle to get the goalie moving side to side. Look for screens of the gaping variety. Sometimes goalies get screened and they will leave a section of the net obviously available...if they do a quick shot from the point can make it through or a wrister from the circles can make it.
Odd man rushes and breakaways require more skill to score on...like I said, I probably only score on 35-50 percent of my breakaways. Some games I do really well, the next game I will get stoned.
When coming down the wing for a wrister, I use the toe drag wrister where you roll the RS back and let go a deadly snap shot. However, the weaker the player, the less zip he most likely has on his shot and will be pretty unaffective scoring without a screen.
I like the slider at 6 personally, because I have to work for goals. Right now, I'm averaging 3.25 goals per game since moving the slider to 6 and HUM shot power to 4.
However, if you absolutely can't score at 6, 5 is still higher than many gamers use. It's nothing to be ashamed of.