Hi Paul, a beautiful pen again ! I still have trouble when I look at some of yours and Jims about what happens in the middle. I should explain that I have a perception problem, also sometimes with stairs and small windows etc, and I struggle to see what is obvious to others. So, is it essentially a bit like one slightly larger cone fitting over a smaller cone therefore no band ? I hope that might make sense. There is absolutely no criticism here of yours or Jims pens !, I asked Jim once but right at the end of a long thread, so if you read this Jim I hope I didn't offend you either !
Regards Terry