ok all this week i have been making a metal bass. a Acoustic bass i am putting pickups in it.i know that. what i am asking is the neck i used was off a jazz bass nock off it is 30" scale neck.i using a regulare bass bridge.the thing is i want to know were to mont it like were do i measure on the bridge. i know it is 30" from the nut and 15" from the 12 fret. but i not srue were to mearsue on the bridg it self.i got the bridge off a warsbrun xb100 Q if that helps .if your wording why i decide to bulid it because, i did all my shop projects all ready.and i built my own basses before and wanted a Acoustic and i had a tech do them form me and i have to mig the bridge on so i have to do it my self. o yah what is a good bass pickup for this i want the typ that mount in the sound hoe or some thing like that not the typ that goes on the bridge.