I figured I would post up my experience today. I walked into T-Mobile this afternoon and told them that I wanted to buy a Nexus 6 off contract. I also asked them to cut down my Note 2 sim card to fit a nano sim tray. They have a special device for this in the store. After that I popped in the sim card and after about 3 minutes it activated and I had full service on Verizon. The phone has been working fine ever since. Pretty simple. Also, they did not make me sign up for service or buy a pre-paid sim. I just bought the phone and had them cut down my sim card. Then I left =)