[SsSam]

So I want to forge soul contracts.

Hammers don't seem to reduce the number of slaves needed.
Sites with a Construction bonus do not seem to reduces the number of slaves needed.
Sites with a Blood magic bonus do not seem to reduce the number of slaves needed.

I'm guessing there is no way to achieve a discount on forged blood items?

I was looking for a general blood collecting thread and I can't seem to locate one.

Scout Ferrying seems to be the best way to go.
Multiple collectors?
Go to a large Province and take the financial hit?
Is there a consensus "Best" way to collect blood slaves?