Drift in elevation data?

[mitochondria]

Does anyone else experience drift in the elevation data? I'm riding the same road out and bike several times, and my start/finish points on opposite sides of the road are rarely at the same elevation in the aeropod data, with commonly plus minus 2 metres of difference. My mounting solution is not ideal (there is a small amount of flex), is the tilt sensor used for teh calculation of elevation? Could this be a reason for the error that I am seeing?

Secondly, the measured elevation seems to lag behind the rest of the sensor data by 5-10 secs (the exact seems to change when I become stationary and then start riding again?). Can this be rectified?

Thanks in advance.

[Velocomp]

The drift in your elevation readings is caused by changes in the weather. Elevation is inferred from barometric pressure readings. If the pressure changes during your ride, then the starting elevation won't be the same as the ending elevation, even if you are in the same place!

We don't use the tilt sensor for elevation calculations.

[mitochondria]

Thanks for the response! Should have said in my original post, but my out and back is only ~10 mins worth of riding. Is this amount of drift typical?

[Velocomp]

Drift depends on the weather