Cursive writing style

[Bluetoes101]

What looks like "a" may not be intended as an "a" at all. 

Though the marginalia "a" should be an "a", even if it masks something else, right? As in, it was meant to at least look like what they knew as "a".
Even if we think the main text might just be a load of "c\ \ \" sort of thing, or made up shapes etc.

It makes it hard to say 116v "a" looks different to main text "a" so it might not be from the same time/place/person(s), but one could presumably make a fairly confident comparison between 116v writing (+ maybe also other marginalia) and other text from "time/place/person(s)"? Such as the original post regarding "legal hand".

I don't really have an end-game here, just thinking out loud