What resources are available to help me learn how to use the 90° and 30° rules accurately?

90° and 30° Rule Follow-up – Part II: speed effects” (BD, March, 2005) illustrates and describes how to use the peace-sign technique for the 30° rule. Also, “90° and 30° Rule Follow-up – Part V: the final chapter” (BD, June, 2005) shows how to account for speed effects. These and other issues and effects and principles are summarized in the 30° rule and peace-sign technique document. Also, a large collection of instructional articles are available that address all of the intricacies of and uses for both the 90° and 30° rules.

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