Thanks Dirk, I probably chose a bad example to list. Here’s another:-
X-Spam-Status: No, score=4.84 tagged_above=-1000 required=5
In the above example the message is not tagged as spam as the score is below 5, But the UCR variable is actually set to 3.0.
So my question is more about why the UCR variable is not influencing the Spamassassin required hits value.