I'm new to WC. I do some metal clay, glass and painting (painting w/frits/enamels in fused glass)---also oil painting. In response to your question of enamelling w/torch, etc, I too think it can be done. No experience though, and probably won't since I have 3 kilns. (2 glass, 1PMC).
I believe I saw reference to it in The Art of Enameling by Linda Darty, which I have (and am now too lazy to go downstairs and get it.) This book is great for the ooohhhhh factor and has how tos. BTW, if you buy it, go thru Amazon.com---I bought mine thru delphi and another for a friend at Amazon at a much better price. I'll probably try some enamelling on PMC when I get around to it. My work right now is a mix of PMC, fused glass elements etc. I'm also experimenting with polymer clay transfers (color) for use in PMC designs and my oil paintings.
Hope this helps.