The results were prompted on a discussion about Blood Slave gathering effeciency (as some people prefer to hunt with hunters, which as you can see not all nations are afforded cheap ones).

The way to make up for some of this initial loss is to use scouts hunt for slaves. Scouts don't use/wear anything to hunt. You just put them on Blood Hunt and let them go at it. You can use your initial slaves to equip a Vanjarl with Dousing Rod if you are extremely hard up for slaves and want to put some Van's on Blood Hunting.