Use your scroll on your mouse while pushing ctrl to change size to match your bait size. Push control zero to return to default size. Use the eye and tail to measure. Then I blue tape a clear folder cover or transparency on my puter screen to mark the eye and all of the areas I want with a sharpie. I use a small dremel cone bit to cut them out. Makes a great stencil.
Just offering a tip that most probably have not tried.
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