I placed an order yesterday from R2 and it seems to be progressing well (currently at the DHL parcel export centre in Germany). Not sure what the import implications will be but:
1) They had better availability than any UK site (and in some cases better than the UK distributor).
2) Even with charges (if I attract any) it will still be cheaper than buying in the UK. The XO1 cassette was almost £100 less than the cheapest price in the UK, the tyres were almost half the price, as were the disc rotors. So a saving of almost £200 on a £400 order. VAT and charges won’t be that much.
The shipping cost has gone up considerably (from £7 to £20), but if it arrives relatively quickly, I will continue to use the German sites.