There are many different ways one might go about tuning their compound bow in order to get the maximum efficiency out of it. A simple way to reduce vibration and to increase accuracy is to tune the bow’s brace height. Different bowstrings perform differently to one another and so they should be tuned so that you are able to get the most out of your compound bows.
The brace height of a compound bow is the measurement taken from the middle of the bow grip to the bowstring at 90 degrees. You will find in the specs of any compound bow that the manufacturer gives a recommended brace height, this may not necessarily be the brace height you want to shoot at with another brace height possible proving to be more efficient for your draw length.
You can change this by first, setting the brace height at the minimum level recommended by the manufacturer. Get an idea of how the bow performs by shooting a few arrows. You should then tighten the bowstring by giving it a few twists. Tightening the bowstring will increase the bow’s brace height. When you have tightened the bowstring shoot another round of arrows to gauge the bow’s performance.
Continue on with this until you have reached the maximum recommended brace height. You will find at one point while going up through the process that there will have been a setting that resulted in much less vibration than for other settings. This will be your optimum brace height so you should note it down to try to keep the distance at a consistent level every time you shoot.
It is possible that the bow string will stretch over time. This shouldn’t be a problem if you are careful before using the bow that you measure the height. If it has become too long you should redo the process by tightening the bowstring again.