If you're premium brand with a premium product then the reality is you can't stop the clones.

It's a commercial decision in the end and a decision on how to combat counterfeit goods. You have to use legal means to an extent, but these are costly and time consuming. You have to tighten your supply chain e.g. a network of authorised dealers and you have to look at reasons for entry e.g internal pricing.

All this needs to be done simultaneously to help clamp down on the problem and protect your prime market of genuine buyers. This is ultra important to VU as companies can easily lose genuine buyers long term.

Ultimately it does not stop the clones, what it does is split the market into two distinct categories

1. those who knowingly wish to buy genuine product
2. those who knowingly are prepared to buy a clone

Unfortunately it's a plague which you have to learn to live with and control rather than go all out to eradicate.