Hi, flying 2.0.45 in my home built quad frame. This is a problem I have had for several builds not just 2.0.45. Stable works really great. Alt hold also really good at higher altitudes. At lower levels it just drops to earth. Sonar just does not seem to have any effect. It checks out fine in both CLI and Mission planner. If I spin up the motors (with props off!) I just can't detect any difference in motor speed either holding up above my head, lowering or even covering the sonar completely. All the readings are there going from 20cm up and down really smoothly but no effect at all on the power to motors. Also throttle has no effect. I thought there would be some kind of dead band? RTL also seems to work well at higher altitude but at lower levels it will plough into the ground same as Alt hold if I don't hit Stabilize quick enough.Frame size and weight similair to standard (?) quad. Have I missed something? Can anybody help please?

In spite of very minor problems like this, thanks to you guys this is really, REALLY great fun!

Bob