Had some 6mm from cfs last week, absolute crap! Looked like it had wood worm, when I feathered it loads of strips started to come away from the surface.
I have had rubbish ply from them too. There customer service is sh*t. Always letting me down, but they are the cheapest.
c&f have the worst customer service Cheap, yes But its at a cost imo Always promise the earth, and always fail to deliver...
One of the CFS guys was telling me a few weeks ago they're currently trying to locate a new manufacturer as they know there have been problems
Admit the 6mm ply isn't always the best at CFS, I find the customer service at Bristol spot on and my driver's FAB!