Never tested one, though just
Never tested one, though just spotted one of their frames on ebay and it certainly looks stiff! Though it would look even better if the seller had taken the foam lagging of the seatube and chainstays.
http://www.ebay.co.uk/bhp/carbon-road-frame-fork#ht_727wt_1167
Be a bit of a bargain if it actually went for £26!