I aligned mine to the roll pin in the mini playfield so no, mine doesn't sit on the guide behind it.
Aligning it to the roll pin (im guessing that's why there's one there :p) sets it up to also be perfectly aligned with the ball guide feeding the upper flipper.
Quoted from judremy:
I have mine really far forward and it makes the skillshot much harder. Curious what others say. I would think you would want it all the way back.
You have it aligned to the pin or even further forward than that? Cant imagine it being further forward than that as it was affect the flow of the ball into the exit ramp.