Measurements for outlines available?

Are there any precise measurements of the characters? I have found only vague references to outlines, relative to a base line, in the Anniversary Edition; Diamond Jubilee Series, 2nd ed.; and Shorthand Manual Simplified. In Lesson 12, DJS, 2nd ed., paragraph 95 it states, "Gregg Shorthand is equally legible whether it is written on ruled or on unruled paper; consequently, you need not worry about the exact placement of your outlines on the printed lines in your notebook. You will be able to read your outlines regardless of their placement on the printed line. The main purpose that the printed lines in your notebook serves is to keep you from wandering uphill and downhill as your write."
But, lines would be very useful in trying to learn to identify the individual characters. As an example, currently, the horizontal blue lines on a 3" X 6" index card are spaced about 1/4th of an inch apart (around 6cm, looks like). I've wanted to put the individual and groups of shorthand characters on home-made index cards in a consistent style, to use as flashcards, but it is hard without reference to line height.
I'd appreciate any suggestions. Thank you.

(by redshift0101011 for everyone)