Here are a few " non dangerous" ones-

1) Run a tru-peep instead of a peep with a tube, or run a no-peep.

2) install TruBall " speedballs" and adjust them with the help of a chrono. (some of the best on the market, up to 11fps, depending upon bow)

3) Tear bow down and polish axels clean with fine steel wool, then spray with Hoppes" ' Dri-lube. Also make sure your cam spins freely when in the limb and assembled, before you re-install harness or string. If it doesn' t spin freely, then you are too tightly shimmed.

4) Run a string built of higher speed material, such as 8125, and run two less strands and a thicker centerserving. (5 feet per strand normally) Most strings are built above stress spec and can handle this. Don' t go any more than 2 tho.

5) Run a smaller centerserving. Also eliminate brass noksets and replace them with tie-in ones.

6) Run a lighter arrow.

There are many more, but you can easily void you warranty if you use them. Even the string strand drop will void your warranty, so be careful of what you do. Good shooting, Pinwheel 12