Has anyone ever felted with etamine??? Feedback please!

Last summer at the Felt in Focus symposium in Denmark Lyda Rump had some wonderful hand dyed fabric the like of which I had never seen before and which she explained to us was called etamine, it was 100% wool.  I do remember that Lyda said it was particularily suited to shibori (in a washing machine??) and also for using discharge paste to remove selected areas of colour, have any of you had a go???  Trying to do a bit of research on the internet did disclose that wool etamine is good for nuno felting but the info is sketchy and I am looking for some feedback.  Wollknoll are now selling etamine scarves and fabric by the metre and my latest order has just arrived this morning complete with 4 of the scarves, unfortunately the colour I wanted from a bolt must have been out of stock so I don’t have any small samples to practice on as I had expected.  At E12.50 plus P&P the scarves are not a cheap raw material so if any of you have some advice about the possible shrinkage rate, results you have had, pictures of work you have created etc. and are happy to share here that would be great thanks!

As an aside, if you are interested in having a peak at the video I created for Kelly recently for the Going Green Swap with a Twist on Ravelry head on over here to Clasheen Uncut!