I've recently embarked on an accidental parts P-bass project (I bought the neck and body late one night on ebay - you know the story). I'm pretty new to all of this and want the process to be as simple as possible so I want to use as many of the original screw holes as I can. I was wondering what these bridge screw holes are - I think the five in a row would be for a standard 5 screw bridge (they seem the same spacing on my Fender Mex P-bass), but I am not sure what the other 3 screw holes are for. Are all bass bridges likely to have the same screw spacing? I'm also assuming that the longer hole is for the wire to ground the bridge. Thanks in advance (and apologies if this has been answered elsewhere - I've had a search, but found nothing so far). Adrian.