Steps:
- Secure the fin can using two tip-to-tip layup jigs on a level surface and face jigs towards a blank wall
- Place laser level on one fin and point towards wall
- Mark where the beam hits the wall
- From the floor, measure height of laser beam emitted by laser level + record height
- Measure height of mark on the wall from the floor
- Rotate the fin can to test the other fins and repeat steps 1-5 for each fin
- Compare deltas in height (laser level height vs mark on wall)