Guys - i just got an email off Stringway. The email contains a document which has a pic of the aluminium cross stringer and all the benefits of the tool. It also explains the 2 versions of the tool they have and shows the introductory offer they are selling the tool at up until 20th of February (10 days). If anyone wants the document, give me a quick pm and ill happily send it to you. They also told me if I "want to receive any more information or a newsletter about the tools contact Alpha Tennis in the US firstname.lastname@example.org or Stringway outside the US email@example.com"