Hi!
I had good results applying Molotow's chrome, from the refill bottle, not the pens. Pour some in a small container, use a number two brush, and apply VERY WET on the part, only once, with minimal overlap. It works fine (see front suspension on roadster below). Do NOT retouch what you just applied, or it will show streaks and dull sections. If you absolutely have to apply a second coat, wait at least a week, and make it LESS WET than the first, to avoid too thick a chrome surface.
Good luck!
CT