Greetings
I had assumed that inside the '.pfb' file that: 'height = ##' related to the height raised when using the mouse wheel to go up a level! But it seems to me that regardless of what value 'height' is given, if 'width' or 'depth' is greater then that's the amount that the mouse wheel uses/raises.
i.e. what ever is the greater value out of 'width=', 'height=' or 'depth=' in the 'pfb' file, that's the value that's used by the mouse wheel!
Hope that makes sense...
BadGibbon