Glazing begins

I am beginning a glaze cycle today probably for next 2 weeks. Two different types of kiln. The majority into electric kilns and I have 2 other firings using a wood kiln. I want to locate a crazing slip to try on some of the wood fire pieces. This wood kiln doesn't deposit a lot of fly ash and so I am trying to figure what to apply to the surfaces of the pots to make use of what does fly their way. This wood fired teapot has a shino glaze and its tray was electric fired.