Just a little FYI about 4G in Encinitas. I finally called Sprint today to complain about how my calls keep dropping while traversing Encinitas Blvd - both east and west of El Camino Real. My signal is always good - 5 bars, but the call goes buggy and then the phone loses the call.
Anyway, the Sprint person in customer service said - after looking on a map because I didn't have an "address" to give her - "They're installing Network Vision upgrades in that area. It should be finished by the end of the month. If you continue to have problems next month, call us back."
So, that sounds like potentially good news!