Having done a lot of feet of edge flame polishing in the 100's As been stated by the other posters.
KNOW YOUR Material!!!!
Keep your heat source form the edge! It is a real pain to try to repair over heating or burn.
KEEP MOVING AT ALL COSTS!
Start with a semi smooth edge, I have only meet one guy that could flame polish a rough chainsaw cut on the acrylic.
Finally, as with most things in life PRACTICE, PRACTICE,PRACTICE, cut some sheet goods in to strips about 1" wide or make some shelves out of it but you will have 4 edges to practice on.
:clown: