paint mask over automotive paint

[Rexerex 0]

 I have been using Gerbermask and recently tried Avery SF100 yellow. It seems comparable for our use which is mainly military markings on aircraft and vehicles. Sometimes there may be for example, round head rivets which the mask may not be able to conform to and we cut clearance around the rivet. Then we may apply masking tape that we can press tightly to the rivet or other feature to replace the vinyl mask in that area.

 Is there other materials or methods that would work better? I would like advice about other brands or products that are worth trying for these projects.

Thanks.