Anton, I agree that there are parts of this folio that look scraped or acid-wiped, there are parts that are unclear, there are parts that seem to maybe indicate a second hand (maybe, I'm not positive, even after years of looking at it), but the parchment behind the "i" in mich is one of the cleanest parts of the folio.
I'm not saying you are right or wrong, but it doesn't look to me like anything was added or changed in that specific spot where the "i" is and the style of it matches the other "i" letters on the folio.
I'm not saying you are right or wrong, but it doesn't look to me like anything was added or changed in that specific spot where the "i" is and the style of it matches the other "i" letters on the folio.