Liquidorange: There is more than one way to tune a bow. This is how I do it. The first thing to do is to verify that you are using the correct spine arrows for the bow. Too light of a spine arrow and it will bend and flex as it goes through the rest and thats not good. With the whisker biscuit you want a loose biscuit to arrow fit, a tight biscuit is not good. I usually start by setting the bow at an even tiller. I just back off both limbs three full even turns from max and that is close enough to work. Bolt the biscuit on the bow. The biscuit shold be parallel to the bowstring, not tipped forward or backward. Nock an arrow on the string at a 90degree angle to the bowstring and place a single nockset above the arrow. Adjust the windage for the rest by grouptuning for the narrowest group. On most righthanded bows the nocktravel is forward and to the left about 1/8" or so on account of the cableguard stressing the right side of the bow, so adjusting the rest about 1/8" left of center will probably have the bow shooting its straightest and narrowest group. Leave the arrow nocked at a 90degree angle to the bowstring and adjust the tiller if needed to get a level arrow in the target. If the arrow is hitting nock high the upper limb is doing more work than the lower limb so you would tighten the lower limb bolt to correct the tiller. If the arrow is hitting nock low the lower limb is doing more work than the upper so you would tighten the upper limb bolt to correct the tiller. You don' t need to be adjusting the nockset on the bowstring to get level arrow flight with the whisker biscuit when this can be accomplished by correcting the tiller. A properly tuned bow and rest shooting the correct spined arrows will usually put both fieldpoints and broadheads in the same hole. Liquidorange, good luck tuning your bow. I hope this sated your curiosity a bit. Good luck hunting!