The thing to keep in mind is that whatever your game is currently set for, liberal or conservative, there may or may not be holes in the playfield for the other settings. So if you want to change, you may have to drill pilot holes.
What I'm not sure about is how they shipped by default. I know most games got diagrams for post placement, like yours, but no clue if default for shipping was liberal or conservative. They certainly didn't leave the posts out to let the operator decide. It's entirely possible that the distributor made the decision. 'Give me 50 Gold Strikes, conservative.' I seem to remember that Gottlieb did mark the holes anyway. So if you wanted to change settings, you didn't have to measure. Just remove the wood screws and relocate the posts.
Gold Strike is one of the many flavors of El Dorado. One of the best EM's ever built IMO. Enjoy.
