I have a narrow elderberry stave (sambucus nigra). Elderberry is not easy to come by around here so I’d like to get two bows from this but if I only get one then that’ll be ok. Anyway, It has 3 pairs of nodes (knots?) every 18” or so but each pair of nodes is at 90 degrees from the other so a split would run into a pair of knots sooner or later. Can elder be split or should I saw through the nodes. Maybe put the wedge through one set and start the split in the centre of the stave? Any ideas?