Variables
| TL1 | Total length of main leader from point of attachment of codominant stem/branch (pruned branch) |
| BL1 | Total length of codominant stem/branch (pruned branch) from point of attachment, prior to pruning |
| BL_ | Total length of branch not being pruned, measure from trunk |
| TL_ | Total length of main leader from point of attachment of branch not being pruned |
| PL1 | Length of codominant stem/branch (pruned branch) removed by pruning |
| AG1 | Length of previous years (2004) annual growth on main stem (measured from terminal bud scale scar) |
| BG1 | Length of previous years (2004) annual growth measured from terminal bud scale scar to tip of branch on branch being pruned |
| BG_ | Length of previous years (2004) annual growth measured from terminal bud scale scar to tip of branch on branch not being pruned in same tree |
| BD1 (BBR) | Diameter of the branch being pruned, measured at branch bark ridge |
| BD1 (2 in) | Diameter of the branch being pruned, measured 2 inches away (distal) from branch bark ridge |
| BD_ (BBR) | Diameter of the branch not being pruned in the same tree |
| BD_ (2 in) | Diameter of the branch not being pruned in the same tree |
| TD1 (BBR) | Diameter of the trunk, measured at the branch bark ridge of the branch being pruned |
| TD1 (2 in) | Diameter of the trunk, measured 2 inches above the branch bark ridge of the branch being pruned |
| TD_ (BBR) | Diameter of the trunk, measured at the branch bark ridge of a branch not being pruned |
| TD_ (2 in) | Diameter of the trunk, measured 2 inches above the branch bark ridge of a branch not being pruned |
| Aspect Ratio | BD1/TD1 |
| PL1/BL1*100 | Reduction Pruning Percentage |