I have never tried a pen for touching up paint chips. I have used the bottle of touchup paint from the dealer and have had fair results at best. It is probably my lack of the proper technique that produces the marginal results. I need to touch up my wifes green Accord before I do the whole clay then Pinacle over Klasse wax and detail job next week. For those that have used both the pen and the bottle, which do you prefer? Suggestions and tips will be greatly appreciated. Thanks in advance.