Opreston event is absolute trash!

After searching for roughly 16hrs i finallg found 2 averies that were taking bg a level 15th player. So me being almost 19 i said this player since these are the onky ones ive seen since the event started. I sent my troops on a 15min march just tonget the only 2 averies on the entire map! I have seen 0 prestons and neither has anyone in my entire clan. This event is trash and either needs more spawns or just to be deleted entirely!!!!!!!!!!!!!!!!