1. I found a self-etching spray-can primer which seems to adhere much better than the one I'm currently using. If I change in mid-project, would there be any issues in riveting parts together which have been painted with different primers?
2. Scuffing, cleaning and priming the skins is easier before dimpling. Is it ok to do that?
3. I'm confused about the 'final-drill' requirement for flush rivets in pre-punched kits like my RV-14. The punched holes expand to be larger than the rivet diameter when dimpled, so it seems that the lateral location of the rivet will be determined by the dimple which it nests into. What, then, is the purpose of 'final-drilling'?
2. Scuffing, cleaning and priming the skins is easier before dimpling. Is it ok to do that?
3. I'm confused about the 'final-drill' requirement for flush rivets in pre-punched kits like my RV-14. The punched holes expand to be larger than the rivet diameter when dimpled, so it seems that the lateral location of the rivet will be determined by the dimple which it nests into. What, then, is the purpose of 'final-drilling'?