FED,
Wiki says that some of the first production Tempests were fitted with Griffons but later ones had the Sabre. Did those rotate "the wrong way", too, do you know ?
Never had anything to do with them, the only one I ever saw close to was at Hawarden in 1942. Flown by a very attractive, petite ATA girl in a tight-fitting white flying overall.
Put us in our place, it did, as we went back to our old Mk.I Spitfires on the OTU !