With build #279 I have been experiencing a strange issue, there server will perform perfectly regardless of how many players are online holding a 20 tick, but then suddenly the tick will drop to somewhere in the 14-10 range with occasional dips below 10. As the server uptime continues these dips get slightly lower each time, starting in the 14's and going down to the 10's now at 4 hours uptime. In an equally unexplained event the server tick will instantaneously recover to a perfect 20 and sit there for a random period before returning to the problem outlined above. I have tried enabling/disabling/changing versions of various plugins and sometimes it will have a slight effect, increasing the average tick during the low period by 1 or maybe 2, but since that is hardly a fraction of the tick lost none of them seem to be the source. Attempts at plugin profiling using Nolagg Examine trigger another bug I just reported so I am afraid I can not provide more exact info. The randomness of when the issue is triggered as well as the ineffectual results of regular measures to find the cause of such a disturbance leads me to believe that there is something in Spigot that triggers this issue through a players action. I should probably note that I am running with a view distance of 5 chunks as that has caused interesting issues in the past. Thank you for your time.