So I guess simply untwisting the rubber feet to raise the front a bit won't work?
Untwisting the rubber feet is not a solution and should be avoided. Doing so will push the metal insert inside the enclosure; the rubber surface of the rubber foot needs to be in full contact with the enclosure.
The VP180 has a flat side (usually used as the bottom one) and its opposite side usually the top one) is angled. You can set the VP180 on its angled side to be used as the bottom one. Doing so will direct its output upwards. You can use the rubber feet to decouple it from its resting surface if you wish. Hockey pucks are also a perfect alternative and might even work better for Canadians and hockey fans.