Thanks for the response. Added experience is always good. I think the types of head and also dribbling are the bits missing from the write up. What issue did you have with simplyfy3D, why does it not work?

As to TCT, I will be going. Last year I managed about 1hr before I got called away so hopefully it will be more successful this year. We never run a stand though, it's a fact finding mission to see what people are doing. I especially like the start-up section. Always good to see new designs coming through, new ideas that's what we go for.