Geotargeting on Webmaster Tools

Hi,

Just a quick one for those with any experience of this.

I'm from the UK but 95% of my customers are from the USA, Australia and Canada. I prefer it this way as I dont particularly want to sell to those in the UK (I can charge more for the products to customers abroad, therefore UK customers aren't as likely to purchase), so how should I set my geo targeting? I currently have it set to USA but I don;t know if this the best thing to do as it may decrease impressions/clicks from Australia and Canada?

Any suggestions?

Thanks.

Make a subdomain for each country and then you can set GWT up to target each country.