I didnt read your whole post but I'll tel you my findings. I run SH events often 8 people and we do several events til everyone gets first piece. Average drop rate with full party is 2 hours. Sent feet dropped on first kil. And siphon gloves had worst drop rate. 6 hours no drop. Mask turban and ring and all drop 1.5-2 hours for us. The gear really isn't worth it though. I get it hoping they lift the materia ban on it.