Yeah, watching Williams this year, I could see him do the little shuffle in his preshot. I’m guessing this is from establishing that true center using the sightright system. But wow, his potting was out of this world this season.
Re. the price: If you do the monthly sub, the first month is 40 pounds and includes the pocket SighRight along with access to the online training resources. Subsequent months are 10 pounds to maintain access to the online resources. You could cancel after a month and ‘consume’ the resources within that time. I think for the ease of use, the feedback it provides, and the resources that go with it, it’s pretty good value.
Personally, I just gave them 90 pounds for lifetime access, partially to show my appreciation for making available resources they had for a long time made accessible only through a registered SightRight coach.
What's a one-sentence summary of how it works? You use the alignment device to develop a habit to properly line up with your vision center each shot?