I have just received the Garhauer traveller upgrade set plus mainsheet blocks for the Cat30. They were so kind to include a sketch, but I am not 100% certain about the lines going from the 'centerpiece' to the end pieces. If anyone would have a picture of their set up, I would be most grateful. I know I can call Garhauer, but due to time zone differences between Australia and US this is a bit of a hassle. BTW thanks Don Guillette for your suggestion to ask for Guido - it all went smoothly, albeit somewhat slow due to above time difference. Can't wait to install....