I did some research on this last month. I have found the G2 spent less time searching for a 3G or LTE signal when the phone is in Global mode. I live in a part of North Texas where towers are 15-30 miles apart and so consistent testing is possible using the same set of towers. In the LTE/CDMA mode the phone would sometimes spend as much as 2 minutes hunting for 3G or LTE signal when handing off between two towers along the highway. In Global mode, it was closer to 10-15 seconds at handoff times. I noticed the leaked KitKat OTA for Verizon has an updated radio baseband so that may change in the future, once I get the official OTA I will re-evaluate.