Hi Darth, Not every variation of ink on a stamp constitutes a re-entry. Ralph Trimble has a part of his web site dedicated to images and terms of various inking flaws. These are at:
http://www.re-entries.com/terms.html . The terms describe various inking anomalies and many are not considered re-entries. At the magnification you are looking at these stamps almost everything will have an odd inking bulge or uneven line. These could be caused by a re-entry if they are a separate and defined line mimicking a design element. Other anomalies could be ink bleed in the paper, ink pulls, actual small design flaws. Many of the early stamps were done with hand engraving so the cutting of the die was not precise. Plate damage and wear also occur. This is just a short list of what might be found. Just remember every small inking anomaly is not necessarily a re-entry. Keep posting your finds as you are bound to find other re-entries. New plate flaws and re-entries are being found fairly often especially with the tools we have today to examine stamps with.
Mike