Brace height is the distance between the pivot point of the grip and the string at rest. The brace height can be adjusted by adding or removing twists from your string when your bow in unstrung

Tiller is the difference in actual distance between the upper limb to the string and lower limb to the string measured from the base of the limbs (where the limb and riser meet) at a 90 degree angle. Single cam models must be measured from a reference line from axle to axle.

The main function of tiller is to allow the archer to more easily and comfortably aim during the draw and release of the shot.

Most compound bows will shoot best with an even tiller which means the distance from the string to the limb is the same on top and bottom. Most recurves need a bit of positive tiller- the distance to the bottom limb at 1/8”-1/4” less than the top, due to finger balance.

Tiller adjustments are made by adjusting either the top or bottom limb weight adjustment bolt. For example, if you have too much tiller on the bottom limb, decrease the weight on the top limb or increase the weight on the bottom. Most bowyers recommend that you initially set tiller equal on top and bottom.