That bulletwood bellied didn´t want to co-operate. Tillering with long string went OK but when trying to put short string on I got some firewood... :-(
Perhaps that hickory was not best quality, some starting rottening or something. At least that piece is darker, as seen in the earlier pictures, and it exploded just there.
Now I’ve decided to try to make new lower limb to pair it with the undamaged upper limb.