Much asked, and probably has changed over the time they have existed.

It all depends on how proficient the players are at using the allotment.

Yesterday's maintenance screwed up all the bonus nodes.

Kingdome 879, its kinda new, extremely active, before the maintenace also due to the halloween event that double their number i was able to send 15 full marches on lvl 8 nodes and giving up on many others. After teh maintenace there was just a few up..like i found 3-4 of them after a fair amount of time wasted. Now they are gone, nothing is respawning. I came here on the forum for the same reason...to see if anyone was already reporting the issue