I didn't even know BFG made those in our OEM size.
Those are what they should have come with from the factory as they would last longer than the B-stones and ride better/have better impact resistance, but yes, with a little less ultimate grip and slightly less turn-in response.
The ultimate (summer street tire) would be IF Michelin made the PSSs in our OEM size, or even in the aftermarket sizes we use.
That IS a crazy good deal though for someone using/keeping the OEM size!