In reply to adstapleton:
> (In reply to Hazelnuts)
>
> Good point, but the training wall I built in my garage is really dull and I've changed the holds around loads of times.
I don't think having one set of holds permanently in place will remotely solve that problem. Find that Malc Smith video about setting problems on a small wall, focusing on footwork. It's on the net somewhere.
I use a board that me and a pal built in his tiny spare room; making creative moves is definitely a black art and in my opinion making them to work to your weaknesses is harder again. But I don't think a permanent wall outside will help.
But imagine building a freaking huge roof in your back garden. ^_^