How would you go about finding enough ice for the training without the situation getting out of control? I'd have thought that training in ice and training in IMC are two different things altogether, after all, in IMC the instructor sat next to you will have an Instrument or IMC rating or you might just be wearing foggles, but in ice it's for real - what can you do if it gets out of control?
All sounds a bit too dangerous for me, and I'm glad I learnt about icing out of a text book.