I have been researching a niche using the Google External Keyword tool set to UK. My keywords are phrases that are more commonly used in the USA than the UK and I am concerned that the search volumes I am seeing are not 'real' UK searches as the volumes are much higher than I expected. Has anyone else had this experience? Does anyone have any suggestions about how to confirm the results really do reflect UK traffic? Are there any other tools that are worth using to double check, like Wordtracker (which I have not used for ages)? Thanks.