Use T and Bar registration so that you can center your paper over your image. The masonite frame should have horizontal and vertical center marks on it. Your first proof should be taken on newsprint. Roll up your image again and proof once more on newsprint. The next print can be pulled on good paper, Rives BFK or any other etching paper.
Paper can be dry or dampened.
Adjusting Your Image You can make changes to your image on the fly be scratching into and or removing some of the silicone surface. You may do this with sandpaper, steel wool, etching needles, diamond head tools, just about anything sharp or with an edge. So far, we've seen only black and white imagery. Vitreography is anything but that. You can experiment with color combinations quite easily using a monoprint technique.