If your bare shafts are impacting to the right of your fletched shafts, your spine is too weak. To correct this problem you can decrease the poundage on your bow, decrease your arrow length, decrease your point weight, move your rest to the left (for release shooters), increase the cushion plunger tension (for finger shooters) or choose an arrow with more spine.

STEP THREE
Tuning Arrows For Broadheads
Some bowhunters screw broadheads onto their arrows and never give a thought to blade alignment. My experience and testing indicates demonstrable differences in accuracy when blade alignment is used for shooting fixed three-blade broadheads.

As an arrow flies, a constant battle takes place between the blades of a broadhead and an arrow's vanes. Both influence the control of an arrow's flight. The longer the vane and the more helical, the better control you will have over your broadhead. I recommend using 4- to 5-inch vanes for hunting purposes. I use a 4.18-inch vane with an extreme right helical to control the 125-grain broadhead I use, but I also align my blades to my fletching. I've found that I have more control in accuracy, especially on longer shots.

The last step entails the use of an arrow spin tester to see if your broadheads and nocks spin symmetrically.

STEP FOUR
Bow Tuning For Broadheads
This next step will keep you from having to adjust your sight pins for hunting season. After you have successfully performed the tuning tests listed above and have found the perfectly spined arrow, you are ready for the following fine-tuning procedures.

A fixed three-blade broadhead will detect any slight flaw in your bow tuning process that may cause your arrows to plane, resulting in decreased accuracy. The true test is to shoot six fletched arrows at a 20-yard target; three arrows with field points and three arrows with fixed three-blade broadheads that weigh the same as your field points.

Step back to 40 yards and perform the same test. The varying results might shock you.

Properly setting your center shot will eliminate erratic arrow flight. This is achieved by adjusting your rest or cushion plunger button. There are a number of good devices on the market for this procedure.

For release shooters it should be set directly down the center of the arrow. For finger shooters the arrow should be set slightly left of center.

Using a bow square, release shooters should begin by setting their nock point slightly above 90 degrees to the bowstring. Fingers shooters should begin by setting their nock point at about 3/8-inch above square. All adjustments are to be made in 1/32-inch increments.

Perform this test with six fletched arrows -- three with field points and three with fixed three-blade broadheads. Place a strip of tape (1-inch wide by 12 inches long) horizontally on a piece of cardboard to be used as a target. From 20 yards, shoot all six arrows at the tape, shooting the field points first. Don't worry about grouping them. Just try to space them out from left to right on the tape.

If the broadheads impact the target higher than the field points, raise your nock point. If the broadheads are impacting the target lower than the field points, lower your nock point. After adjusting, shoot all six arrows again. Your goal is to get all arrows impacting on the horizontal tape.