I like using the 1/8" 3M Fine Line tape for something like that.
I've done it both ways. 1. Trying to lay tape to follow a tight circle/curve and 2. overlaying the curve and then cutting the edge of the curve with a safety blade.
Method #2 was much faster and more precise with no bleed.
Plus it give you much more remaining tape to add your additional masking to.
Just my two nickels worth. I hate pennies.
Did anybody shoot clear over the paint when you were done or just left alone after painting?
Here's a trick to avoid the "bleed" that Stan mentioned. After masking dust a coat or two of paint along the tape line. Very lightly. This will bridge between the tape and painted surface and not allow any paint to seep under the tape.
You're going to leave the backside and the hidden spots under the trim rings alone, or doing it the hard way ?
I took and angle grinder mounted wire brush to the back sides. Cleaned them up with varsol and then sprayed with rust converter. Lastly the back sides were finished with gloss black paint.
Here's a trick to avoid the "bleed" that Stan mentioned. After masking dust a coat or two of paint along the tape line. Very lightly. This will bridge between the tape and painted surface and not allow any paint to seep under the tape.
Mine looked like that when I bought them. I sandblasted them. Well, well worth it.My back sides are pretty rusty. I might hit them with a wire brush on a drill and spray with rust converter and then gloss black.