I've used heat with epns a few times in the past and found that as long as I didn't go too far and try to get a forge-hot glow it works fine and bends nicely; some of the bits that were overheated actually took on a nice rustic look, but I'm not sure if I would be able to repeat that. I took to using a heat gun for bending and that works a treat.Next time I do something like this I might try it with a bit of heat.
Not sure how nickel Silver behaves when hot but it might be worth experimenting.
Gary, Yes I am coming for the May Meet I have several bits for my set up, and bring a few extra bits and pieces which may work into more kit or pass on to others to try out for use.