What Stetson said.
Also, if you're a beginner, I'd go for the chisel method. Tracing a line with a divider and pre-punching my holes has enabled me to achieve, in a very short time, stitching that is so consistent that it's common that people ask me if I'm using a machine. My stitching is not perfect, I still get the odd stitch here and there, but nothing like the debacle I'd turn out were I to use a pricking wheel and diamond awl.