Thanks for all the opinions all. very intersting reading. In summary I actually suspect that modern ABS construction has not had mass exposure in the modern artf arena. I personally can find no disadvantages and plenty of advantages to this material. Maybe it just needs one of the bigger manufacturers to push this a bit harder (I realise ttr are selling these designs but not really pushing this material I feel).
Anyway Ill shut up now and leave with an unashamed plug for my latest paragliding vid.
http://www.vimeo.com/19864981