Thanks so much for the comprehensive feedback. I am really pleased you 'got it'. I have a history of making games that are hard to get, so it was really nice to stumble on an idea that was easy to pick up. It's part of the danger in trying to come up with original game loops, that and having no idea how to pull them off and plan the time it might take. It tickled me that you said hello to the & co, I guess that's my kids who were forced into play testing so I could have a break. I shall make sure their reluctant work has been recognised.