0.775 apart: what actually separated Troopers and Blue Knights
Troopers held off Blue Knights by 0.775 at Finals, and the largest share of that margin (0.275 weighted, 35% of it) came out of one caption: Percussion. The piece argues that the difference between 11th and 12th was a verdict in Percussion, not a verdict on the whole sheet.
This is a reading of the sheets rather than a report of an event. The rows it argues from are printed underneath it so the argument can be checked rather than taken.
The evidence
DCI World Championship Finals, August 8: Troopers 86.95 (11th), Blue Knights 86.175 (12th). Margin 0.775. (the DCI Forge score archive)
Percussion is the largest single contributor to the margin: 0.275 of the 0.775, weighted (x0.5 against the total). (the DCI Forge score archive)
Blue Knights took General Effect Visual back the other way, worth 0.15 weighted. The margin survived it. (the DCI Forge score archive)
How the numbers are weighted
General Effect counts twice. The two effect captions carry 40 of the 100 points and the six performance captions carry 60, so a tenth moved in effect is worth two tenths moved in percussion. Every weighted figure in this piece is scaled that way; the unweighted caption marks are printed as the recap prints them.