I think this thread is being a bit unfair towards the Carbonetic Clutch. Scoobyslayer's issues were obviously nothing to do with the clutch itself. Mark's clutch problems has yet to be solved.
I had a similar problem on my own car but fitting a new clutch master cylinder has fixed that one which I have suggested to Mark.
Carbonetic Europes reply on this subject is as follows:
"We do not class the clutch as a full carbon clutch, the friction material used is called carbon/carbon, all other manufactures use a different type of carbon to us, and theirs is pan type fibre. Looks similar to CFRP, its fine as a friction material but it requires heat in order to achieve maximum performance, its life span is not as long either and it cannot withstand higher temperatures.
The images on those forums, those clutches have been slipped beyond belief, for them to turn blue it means a massive amount of heat has been transferred through the clutch. The reason I would say they are “sticking” is because the metal plates are warped way beyond any tolerable level.
These clutches are not meant to be slipped, we have always advised them never to be slipped and the best way to use our triple plate for drag racing is to side step or drop the clutch, if you sit there slipping it for a prolonged period of time you are going to warp it. If those images are of your customers car that explains why the clutch isn’t working correctly! That clutch needs rebuilding, bedding in again and then if they are going to use it for drag racing, they cannot slip the clutch they will have to use another launch technique.
Engagement problems, are nearly always down to warped pressure plates and intermediate plates. If those pictures are of his clutch, then they are warped. They are warped from drag racing or hard launches when the clutch is to new or excessive slipping of the clutch even after its been bedded in.
The customer should know from the instructions that he cannot slip the clutch for prolonged periods, 3 seconds max we recommend.
There are only two ways the clutch warps, from either bad installation (we know this isn’t the case) or from abuse to the clutch by not giving it a long enough bed in or its just been slipped. The clutch won’t warp by itself, it needs a little help from the user. "