psfmtdrv -hoff# pushes page but not the trimbox

2 part problem:

I recently discovered that when specifying the -hoff switch for printing to postscript/pdf it does NOT push the trim box the same value.  Trimbox stays in the original position before offset applied.

Seems like a bug maybe (?).  if not, what should I be doing differently?   

Why am I using -hoff#, because I need the file w/cropmarks centered on the media for the printer.   Is there a different way to achieve this?    Doc says default is to center but it's placing off-center

Job is Landscape orientation, 8.25 x 5 inch trim output onto 11 x 8.5 media (w/traycontrol file)

Appreciate any input!