As with most instructions, when the author knows a subject inside out and back to front, there is an implied level of knowledge that sometimes needs further explanation/clarification. My basic template drawn, I have had a lovely couple of days researching the various elements: bones, busk, fabrics, and looking at finished corset pictures to work out the missing elements. Having a level of corset building knowledge has been useful, but Victorian and Elizabethan corsets are quite different, both in design and construction. Unlike a Victorian corset, an Elizabethan corset is less about narrowing and curving of the shape; rather it is built to shape an entirely flat, straight front and provide support to hold up the weight of the farthingale, bum roll and outer skirts. It has only a back closure and none of the boning should be flexible, as it would in a Victorian corset; the front panel is solid side-to-side bones. Moreover, and most interestingly, the centre front busk should be made of wood. As an Elizabethan corset ends in a point at the front, mid pelvis no less, this measurement needs to be carefully considered if it is to be held firm by a carved wooden busk! There are modern alternatives, mainly wider steel bones, but none would have the solidity of wood; I found a supplier of wooden busks, and one is ordered and on it's way.
I chose the most "complicated but comfortable" corset pattern, with eight tabs at the waist. The bones in the corset continue into the tabs and it is recommended that half inch and quarter inch bones are used. A sample pattern of the layout of the bones is provided and it was good fun translating this into a final layout for my corset; juggling width vs strength vs pattern. 28 bones and a busk in total. I thought the Victorian corset was firm, but it had flexibility built in and far less boning; it will be very interesting to see what this feels like.
Here is a scan of the final pattern, with the boning channels and individual bone lengths marked in red.