Great post Zahid. French Polish is one of my favorite finishing techniques - I actually find it very enjoyable to do and the results are outstanding.
In addition to the article that you post, there is also this one that I have found helpful.
http://www.milburnguitars.com/fpbannerframes.html
For those "spray heads" out there (myself included), I have had good results spraying down the first couple base coats of shellac before switching to the rubbing / padding sessions.