Tired of barometer drift.. Is it a bad idea to change EK2_ALT_SOURCE --> 2?

[ddomit]

Altitude Drift Over Time DANGEROUS

Hello everyone, I’d like to address a critical concern in ArduPilot that I believe needs discussion. During extended flights, many of us encounter altitude drift due to varying pressure conditions. Because the barometer is misinterpreting the copter’s altitude, it results in erroneous EKF altitude calculation. The issue here is that flight routes are planned assuming consistent altitudes. Yet, due to weather and pressure variations, the copter’s altitude ends up differing each time the route …