Has anyone figured out the portal level formula? I am thinking that a portal is considered L1,L2,L3,etc by the lowest resonator you have on it but I may be wrong. Can anyone clarify? Basically I have a portal with 1 L4, 3 L2's, and 4 L3's but it is still showing as a level 2 portal. IIRC it wasn't until I upgraded half of the resonators to L3 leaving the other half as L2 that made it a level 2 but cannot remember exactly.