As I was getting ready to inlay this shield it occurred to me I might show my method.
I draw a center line on the scale, then a line across that so I have some references when I clamp the template on the scale. If I'm using bone or stag, I use masking tape and draw the lines on that.
I just sent this one off to it's new home today. It's my first backpocket. 4" closed, CTS-XHP stainless blade, bronze blade pivot bushing, integral bolsters/liners, fluted and threaded bolsters, ivory covers.