Don,
Unlike companies such as T11 and HOPC, CARC mark packages with the sale price, and not the cost price... and as that is high, we get hit with customs fees.
Even if they were to get forwarded to a US address, the company that forwards the package on would still mark the package with the same value as what CARC has put on the box... and so there is no question of savings.
Whatever savings there are in the sale, the customs fees would wipe out for UK buyers... that's the point I was trying to make.