QTR-Quadtone RIP

QTR 2.1 (or 2.3), OSX 10.3.9, 7600 UC

I'm having a problem w/ QTR, using roll paper and auto-cut - i.e. if I
print a 7" high image on 8.5x24 paper size, the auto-cut will cut the
paper at 8" instead of 8.5". It wants to always trim the paper 1/2"
below the image, regardless of the paper size that I specify. The only
way I have gotten around this problem is to make the PS image size
larger, which increases the file size. I don't have this problem when
using the Epson driver. Anyone else having this problem?

Note: If I turn auto-cut off, then I waste about 4" of paper between
prints, which is also not acceptable.

Phil