I still don't get it.
All it sounds like, and judging by the drawings, is just an alternation between lead pursuit and lag pursuit. If a Spit9, would just turn hard in one direction, it might work, but against an AH Spit9, with the pilot pulling max AoA possible in the tightest radius... I doubt if the P-38 would pull more than two 'leaves'.
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Or, against an AH Spit14, now that would make sense.
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I dunno.. I think I'll need to see a film to undestand this one.