Hi Don!
Thank you for taking some time to reach out we hope all is well!
As you “surf to level” there is a sense of strength in the legs. The gap between the knees at the surf to level position will vary based upon the width of the stance and the amount of speed they are creating. For example a hard driver will give a wider appearance than a stock wedge shot. The look of this movement will also vary based on different body types. Don’t feel as though you need to make a conscious effort to spread your knees in transition this will happen naturally as you refine your movements and add speed appropriately to the bottom of the arc!
We hope this helps answer your question and we are looking forward the moments ahead.