#1
Hi i have already installed the nut on my guitar and I am using George Mangos website to help me. When it comes to intalling the bridge he says:

Line the bridge edge up with the existing screw holes from the previous bridge if available. This is your pivot edge
.

Which edge does he mean?
The actual edge of the floyd, the knife edge or another edge?
Just making sure, because I don't want to screw up.

http://www.georgemangos.com/floyd/index.htm

Any tips for drilling the posts in?

Any help would be appreciated
#2
they mean the two machine screws that screw into posts, used for adjusting the pivot height of the bridge. They two holes should line up with the two small semi-circle indents on the bridge

are you replacing a floyd, or is it a fresh install?
#3
Im installing a floyd on my strat body, so it has the vintage trem holes, so i need to drill my own for the floyd.