Black Sheep

I've found that having a desktop fan blowing on the slow setting a few feet away from where you've ballasted, but along the track, pointing gently downwards helps it dry - but if you have it too close or too high you'll have ballast blown everywhere. It does work but just be careful. However in this weather it shouldn't take long to dry on its own anyway.

Think semi skinned milk. Add water to pva in small amounts rather than other way round.

50/50 seems to have failed, perhaps I should have left it overnight...