So I was talking to one of the engineers converting a clear site today and Verizon came up as the topic of discussion. He told me that a few weeks back, the company he worked for had just finished up VZW's 4x2 MIMO upgrade for bands 13, 4 and 2. I have noticed a new very large antenna added to Verizon sites in the past few months so it definitely seems plausible. I have a VZW MiFi hotspot from work but I don't believe that its debug web pages will disclose any information of benefit although I may be wrong...