sunny. . .I don’t know how else to explain the fact the Test Tempest (ST-7764) has ~700 fewer strikes than ST-2827 [being only <3 feet / ~75cm apart]. . .unless. . .it because ST-7764 is the beta pre-production model and ST-2827 is the production model. . . but. . .both are on firmware v129 with the Hubs both being on firmware v143. Or perhaps that the lightning sensor chipware has improved greatly since January.