I find this simple, with Tamiya being easy to use. Cut the tape down to a millimeter or even 1/16". That will go around any curve.
Then come back with added rows of the wider stuff in 1" lengths. The biggest mistake when using masking tape is to try to put down a long length and get it all right.
As an example, try this:
Draw a curve on a flat surface. Cut 3M Blue tape into 1/4" x 1/4" squares. Lay those squares down along the curve with a 1/8" overlap from one to the next. Burnish down well and "toothpick" up and down the overlaps.
Spray paint on, peel up the tape in one long piece from the "overlapped" end.