I have an old seatpost that was removed from its original bike quite some time ago, now I want to use it in another bike, but I don't know if the lower plate should be positioned so it extends behind the top plate or so it extends in front of the top plate. Pictures will describe it better. Here the bottom plate is positioned so it extends toward the back of the bike:
And here the plate is flipped around so it extends toward the front of the bike:
I can't remember how I had it positioned when I was actually using it. Does it matter which way it's set? If so, which is the right way?