I heard today that rather than add the milk slowly, it works better to use a sprayer and spray it on.  I can imagine you doing this and spraying milk all over your kitchen counter or maybe not cleaning the spray bottle well enough and having a sour milk smell.  I think if I was to use this method, I would add powdered milk to the dry ingredients and use water in the spray bottle.  I am going to try it some day.
Aunt Audrey