Spies returned in second to last place, ahead of Hayden, but picked off MikaKallio, Hiroshi Aoyama, Marco Melandri, Aleix Espargaro, Hector Barbera and Randy de Puniet to seal an impressive eighth place.
The link-up means Redding and his new team-mate MikaKallio have already been able to test next year's bike and in a sign of the team's respect for Redding he was involved in the process.
Rounding out the top-10 on Saturday were De Angelis, Ducati's former world champion Nicky Hayden of the U.S., Italian Loris Capirossi on a Suzuki and Finland's MikaKallio -- despite a crash in his stint as a temporary stand-in rider for Ducati.