I am just starting in alt processing and used on old 2" junk brush for Van Dyke and Cyanotype. I found that if the brush is just damp - (wet and flung out) it seems to use less chemistry without apperent dilution. Is this a common practice? I generally learn from doing things that might fail to see what the limits are for success and this was another of those times. I like the brushed look better than the glass rod and am not using expensive chemistry.