Ooh now that is a very useful tip, I hadn't thought of doing the 180 degree twist, I just changed direction every 8 or so. Very handy, thanks Shelagh!
Sarah [ When the border tablet threads start to get annoyingly twisted up, rotate each border tablet 180 degrees around its vertical axis and carry on. The twist will then magically unwind. If yo u do this at a point when you are NOT changing the turning direction of the main deck, the edge will still be almost completely smooth. ]
