I don't know Donny, I remember riding in my friends 1967 Ford Mustang Convertible when this song came on and epitomized the Hammond tone to me:
http://www.youtube.com/watch?v=VxA3atHD2QM

And then I saw Santana do this one and that Hammond Solo was permanently imprinted with the whirling Leslie Horn in my mind forever:
http://www.youtube.com/watch?v=SiGSsP60BLA