I'm looking for some advice on proportions for a large knee brace. The braces are 56" (measured horizontally from the post to the end of the brace tenon). The post is 8x8 and the plate is 8x10. Currently I have them designed as a 4x8 with a curve bringing them to 4x6 in the middle. My hunch is that this is still a bit scrawny. Anyone out there have advice?