I have read here cautions of using too much water with acrylic paints, so I have a few questions.
1. First what is the problem that develops with too much water?
2. How much is too much?
3. I paint large and with a sponge much of the time, but on smaller paintings I switch to a brush and get a lot of stumbling that I don't want in the early stages. The water allows me to paint quickly with this washes, but I am concerned I am using too much water. Is there something else I should be using in the paint to increase the flow?