Inconsistencies that he previously used as evidence for the Obama certificate being a forgery are present in the comparison certificate, even though he claims they're "consistent in size and style."
There are numerous examples, but here are just two:
1. In his original analysis, he posited that the i's in Obama's birth certificate were different, because there was more space between the dot and the letter in some examples. The same thing can be seen in the comparison birth certificate.
2. Also in his original analysis of the Obama certificate, he measured the width of the horizontal lines in letters and said different lengths were impossible using the same typewriter. However, even on the letters he claims are consistent on the comparison birth certificate, there are different widths. For example, the bottom lines of the l's he used on Exhibit 4.