Franz pickups twang alright, and they're on the bright side, but somehow I think you'd be in a lot of trouble plugging that guitar into the Dick Dale-approved Fender Showman with one or two JBLD130's....!!
Also, while I love rockabilly, and like surf guitar, I don't really understand why/how the two styles get lumped together as much as they do - they don't really have that much in common, if anything..?