I could never work it out. We always have more properties than 'invites'. We only get about 3-4k 'invites' with a blank area to put the time & location of the DC. This usually means someone has to run their inkjet flat out and the paper is awful and jams all the time or tries to take 2-3 pages at a time. Same thing happens for the Memorial invittations. What happens then is the Elders decide which Territory Maps™ will be responsive as their are not enough invites to go round the whole territory. The future survival of people in this town depends on what map there street is on and only if the local Elders view that map as more responsive.