Gordon, have you thought of using engobes or terra sigillata. They can touch
the kiln shelf and will not stick because they do not contain sillica (glass).
The easiest way to describe them is that they are like colored clays...
> i am just about to do this project and it seems that the best way
> to get the most glaze coverage is bend the pieces so that only a few
> select parts touch the kiln shelf..