the torch trick *kinda* works, still leaves the scratch, just polishes the white part, but it stresses the material so don't advise it.
3 other good choices:
* Novus 2/3 by hand, #1 does squat for scratches, just a cleaner. I you use 3, be sure to use 2 after
* Small buffing wheel in a drill, use Novus 2/3 (I hate 3 but has it's place) - just make sure to use lotsa Novus so you don't burn the acrylic.
* Micromesh, the *complete* kit, the kit available at Woodcraft is not the same kit available at Micro-surface.com (kit NA-78-1 or MA-1)
There are a coupla other kits out there, but cost much more $$
James