Try this chap, I bought a few bits from him at the Popham meet they were about 1/2 price and very good. Nigel Wood 07836 241420 Sandbar Composites Ltd Its worth a call.
do you have "other carbon fibre bits ? some have a different weave.. casoli , carbonworld.de and ducati performance are all pretty close but i got a streamline carbon bit which was a lot different..