Tips for finding blood slaves appreciated here

[GavinWheeler]

Hunting with Priests:
I had actually heard that the expense of a Blood 1 hunter over a scout with a dowsing rod didn't pay for itself (even over time??), but I wanted lots of priests to try out Communion abuse with a nation other than Pythium. So as I was hiring them anyway, I may as well put them to good use while waiting to try fielding a magic heavy army. And they do (unquantified vague impression here) seem to produce a lot more slaves than my scout hunting parties from an earlier attempt did.

As for the pool button working with auto-blood sacrifice:
Does that mean that if I click 'pool' my auto-sacrificers will go on sacrificing their allotted number of slaves every round, despite not having any slaves in their inventory? For that matter, am I wrong about the number of slaves in their inventory deciding how many slaves they will sacrifice? I can't remember where I heard that, but I haven't tested it myself, having had plenty of blood slaves so far.