Except if it's an optimisation for battery life. Theoretically, you could use less power by pinging the GPS less often in 'snap to road' mode - if that's the ca

Except if it's an optimisation for battery life. Theoretically, you could use less power by pinging the GPS less often in 'snap to road' mode - if that's the case, the 'real' data wouldn't exist or wouldn't be accurate.