Just a quick note to confirm there doesn't seem to be a timer on killing the patches.
We did have an issue where non of the spawned shrooms would be slowable after we had a somewhat mini wipe on our first attempt (only one) where we got silenced and then took a while to rez and restart clearing the patches. Not sure if that happens after a certain amount of time or due to the mini wipe.
We actually ended up calling it because we thought we hadn't done a good job of keeping track of the original 15 but, someone ended up hailing the elder and death beetle did spawn. Went in totally unprepared just to see the event.
On the original 15 patches, is it not possible to use a tracker to do the spawning and just track and kill the most recent spawns first? I don't use MQ and other than having a person with a photographic memory, wondering if any reason that wouldn't work.