As I was doing some building around my outpost on SMP9 last night I had a very unusual encounter with Momentus. I received the standard "The ground shakes nearby..." prompt in my chat bar and then proceeded to gear up and head outside my castle walls for a fight.Here's where it gets interesting. Throughout the battle Momentus seemed to be operating on at least double his normal rate of speed. Even the sound of his voice was sped up, sounding much more like an oversized chipmunk than an enormous zombie. (My daughter got a huge kick out of that by the way. ) These days I can usually take down Momentus with no more than a single death. This time however, due to the speed of his attacks I was killed at least 5-6 times.Two additional items of note:1. All of the Enraged Guardians summoned to the fight by Momentus functioned perfectly normal. No extra speed or sound anomalies for them.2. I did have a Speed II beacon nearby but was outside of its effective range during the entire course of the fight. I wouldn't think its effects would have played a role at all.