RE: Getting the most speed out of my bow.
Lightest total arrow weight you can get. (I wouldnt go lower than 350). Fewest items on your string that will also allow you to shoot accurately and blazers and dropaway which you already mentioned.
I have a friend that has the same setup and he is shooting a claimed 285...seems a tad high but maybe not. Really it is hard to say without knowing what type of arrows you are going to shoot.