Footleg - I'm not using the symbol to control the passage height, I'm using it to show the depth of a trench in a gravel bank.Vasily - I'm already using base-scale to control the size of other symbols but this one is too big. I need to make it smaller without changing all the symbols. The size is probably related to the font size but again I'm happy with the font size for labels etc, I just want to change this particular symbol.