Anyone use Dr. Colorchip touchup?

[Russell]

It is a touch up system to repair paint chips, particularly those on the front end rock/bug chips. Wipe or brush on their correct color "paint" and then wipe off with their "blending" product. Paint remains in chips.

Saw it promoted in Bimmer magazine, Seems unworkable to me. TIA

[pcross]

Dunno....The photos at http://www.drcolorchip.com look pretty convincing.