That's really interesting. I can't wait to see how the tiller came out when you used the dimensions, or close to. When the original was inspected there was no trace of any crushing at the tips so you experiment is very useful as it eliminates a possible scenario, being that the bow is complete and was shot in the method you have used. It is possible that this is how it was strung and the bow was never shot. If you have any data on the arrows you were using and the distances, that would be very interesting too.
Jeremy