Also, when on LTE, the signal bars are showing LTE signal strength, not 1X. But when on EVDO/EHRPD, the signal bars are showing 1X signal strenth. Spent 30 minutes and I can confirm with absolute certainty that the signal bars are showing LTE signal strength.
These are estimates for LTE, as signal strength seems to take other factors into account: Less than -120 is 0 bars, -120 to -116 is 1 bar, -115 to -110 is 2 bars, -109 to -100 is three bars, -99 to -90 is four bars, -89 to -85 is 5 bars, -84 and greater is 6 bars.