I found this sentence when looking up diffidence in dictionary:
I say this with some diffidence.
I think normally the action of saying is done in the past, so it's more natural to say :"I said this with some diffidence."
If it uses present-simple tense, then it is a statement or status, stating that every time I happen to say it, I will say it with diffidence, but it's strange that someone makes that statement.
Of course above things are just my little comprehension of English, so I could only write them with diffidence.
Anyway, how to comprehend this sentence? In what situation would someone write this sentence?