ive been painting cars and bikes foe 35 yrs.the change in paints and techniques is like nite and day.i still forget and mix new paints with the old ways of doing things. most of the time i get lucky and it turns out great. but every once in awhile i gotta back up and punt. when i tell some one how to do things i take for granted they know the basics or a little more. i just dont go into detail like i should.both bubster and tod74 are right.masking of just the run will get it done.and lok good to. ive done it many times on every day cars. but a show car would wet sand the whole panel( yes with soapy water and if need even sprinkle a little ajax on it.) my son does it all by the book. he jumps my but when he catches me doing something from the old days with new type paints!!every car or bike we shoot gets repaired primed, sanded, shot,color sanded starting with 1000 and ending up with 2500. then buffed with 3 different compouds. one of our trucks made in marches issue of sport trucks. flamed out 2007 dodge hemi.if you want your ride back in a few weeks you gotta go somewhere else. with 3 working on a typical car or truck it takes us about 2 months to get it done. but we usually have a couple going on at once. if it aint right it dont leave.i had customers who thought thier car looked good but we didnt let them take it for one reason or another.i painted a car once and i could see where there was two diferent shades of color man couldnt see it but i could. wouldnt let him take it until it was right.my name goes on everything we build or paint so it HASto be right.lively i have no idea why i typed all this. closed on sundays. thats the day we work on our stuff.and im to tired to go outside.sorry man i guess i just wanted someone to talk shop to. and i just remembered its sat.so i gotta go out and open up anyway DAMN