Rebel yell is tight as blue balls... maybe not ceramic tight, but certainly the tightest alnico (just going by the track record of what others have said). Mine is as tight as it ever needs to be; plus it's kinda good to have a little less bass in a pickup being used in an all mahogany guitar.
It's definitely a sleeper, considering most people go the ceramic or nailbomb route, but with enough gain it surely melts your mother's butter.