Have you lost anything due to the 15 second lag spikes?

The lag spikes happen every 15 seconds, almost exactly. When doing jump quests, you can time the distance between one spike and the next by counting. This works for the most part with the Zakum JQ until you reach the very end of the 2nd part where the obstacles also run on the SAME 15 second intervals. At that point, it becomes a leap of faith.

Also, in case anyone was interested (not sure if it's been mentioned already) but everyone spikes at the same time.