Thanks for the prompt response TheOtherCliff!
I have disassembled my Quad already to make significant adjustments. (The lateral drift in GPS mode is actually so significant that I crashed my Quad once in that mode, felt like it was going to fly so I zeroed the throttle). The adjustments are as below
1. I found that the ESC wires to FC and motors wires were not twisted properly.
2. To further reduce the Electromagnetic Field (EMF) radius from the PDB, which is essentially the whole bottom plate of the quad, i will be replacing the plate with a smaller PDB. (I read in one of LibrePilot forums that larger the PDB, the greater the size of the spherical EMF around the PDB)
3. Also, the post for the GPS has metallic plate where the GPS sits. I thought I would make disk shaped barrier between the plate and the GPS (perhaps cork). Good Idea?
4. Also, one of the ESCs was heating up, so will be replacing that as well.
5. Thanks for the great tip below "Fine Tuning Your Hover To Stop Drift (Not Required)." Will definitely be doing that.
6. Would it make sense to do AutoTune to optimize the PIDs before step 5?
7. Also wil be replacing my stock motors with SunnySky 2212/980kvs/
Hoping to re-assemble the Quad this week. It is raining for this and next week so may not be able to do Mag calibration outdoors and test flight until we have a clear day.
So my build will be
Clone 450
Emax 25 Amp ESC
2212 / 980 kv SunnySky
Revo FC
GCS 16.09 RhinoWill share my findings soon.
Stay Well