Boy, that bottom limb is tricky. I am going to enjoy reading what people smarter than me think of this one...if it was me, I would get my calipers and check it just to see if there are any obvious thickness taper problems. You could probably make some calipers out of turkey bones or something to stay more primitive! The video is a great idea - I always wonder about getting tillering advice based on a still photo. I agree that the upper limb looks good though. It doesn't look too dissimilar in the braced photo, but it sure seems to want to bend differently from the bottom.