All
Forgive me if I'm wrong, and please tell me why you don't use them tubes this way, but there is a selectable option 2 clicks away that allows you to increase the font size. I did this myself yesterday to sort out a rather wooly tube. Is there some reason why the font size is set to the smallest of the 3 options? Let me know if there is a reason for this, but it seems to me that it would solve all these problems that are happening.
I'm not trying to stir up a hornet's nest here, just asking.
Cheers.