In my example it's fairly subtle as my sig is small.

If you look at my sig in the first post, in the first example, it doesn't start until AFTER all the info in the left hand side of the postbit. What this means is that for short posts (eg one line), you will get a block as wasted space on the right, between the post and the sig, and THEN you get another block of wasted space on the LEFT, alongside the sig.

What is needed is for the two blocks of space to be effectively combined.

So a postbit is EITHER as long as the column on the left, OR as long as the main block on the right.

By default the sig gets tagged on after everything else, which can look ugly and takes up too much space.

Will you share your answer to the sig problem in VB4, Mark? :)