At 135 lbs, you should stick with stock shocks, especially on the front. They are nice and plush and you won't ever bottom them out at your weight. I wouldn't even set the preload as stiff as it will go. If you jump really large, you might stiffen up the preload on the rear shock a little. I've found it will bottom out quite easily on mid size jumps. Of course, I'm 265 lbs.
Careful riding with passengers. That's a small machine and it handles WAY different when you put someone on the back. As light as you are, you're going to have trouble with the front end pushing.