The white wall proved itself. I was able to develop a sketchbook idea in ways that would not have been possible otherwise. Having the means to lay the work out actual size meant that not only was I able to fine-tune details, significantly I was also able to visualise a development to the work that I had not previously conceived. This transformed the piece. It is clear that I will have to take steps to ensure that I have a similar facility somehow. As things stand that could be a problem.
I had a good conversation with a friend yesterday.