Your welcome Terry.
I have tried to do some chipping using the hairspray technique with very poor results. Almost ruined the model. I have several weak points with chipping, pin washes, doing rust among other weathering techniques.
I have read several articles and watched videos on the above subjects and still can't seem to get them down so seeing what you have done is really inspiring for me to strive and master the techniques.
Keep up the great modeling.
Doug