I'm shopping for pups that fit F space.How will I know if the pup is F space size in Duncans?I know Dimarzios tell it on the pup case.Not sure about Duncans.
..also, Duncan only makes bridge puckups in standard or trem spaced, the Duncan neck pups are always standard spaced, even though DiMarzio offers "F" spced neck pups. Dimarzios in general are more narrow than Duncans, so you only need a standard spaced Duncan for the neck.