Holley instructions contradicting on fuel bowl level ??

If you are going to replace the needle and seats, a .110 or .120 is plenty big. You don't need that .150 needle and seat.
Do you believe that because of such a large needle that is why it was cranked all the way down until it bottomed out just to keep the level of fuel at the bottom of sight glass or is the internal screw as stated from others something to cause this issue being inserted too far?