RE: Tiller Tuning
number one you need touse a fletched arrow to paper tune at 6 feet.
i would say using a fletched arrow will straiten the nock high tear right out.
when you say moderate nock high does moderate mean 1/8" to 1/4"
or does that mean 1/2" to 3/4"
if you have a slight nock high tear with a bare shaft dont worry so much about it and sight in your bow.
if it is a lot nock high you need to move the nocking point down.
my definition of a tuned tiller is both limbs equal off the centerline of the axles where even amounts of force are exerted on the limbs at full draw
if you are using a proper grip the force will be distributed evenly with the exception of bows that are very top heavy, top heavy bows are more susceptable to tiller tuning.
the Bowtech libertyis a very good cantidate for tiller tuning for In some cases I have seen that in order to get a perfect bullet hole in paper requires a low nocking point or set a level nocking point and make adjustments to the tiller to get it shooting right.