I agree.
BMC: also remember that there's considerably more paint inside the bristles than you can see. Part of what you're doing is "pressing" that paint out lightly as you drag the brush along...this is how you control the "line of paint" that you're laying down.
IMHO, It's important to only use light amounts of paint on the brush when you're trying to cut a sharp edge. I'll rarely dip more that a half inch of the brush into the paint...and I clean the brush often to keep it from collecting too much paint in the bristles.

