"So what is meant by "sensor-fusion"?"

"It is called Position Hold in the mode selection."

"Could not find any reference to this but has the boot issue with the APM1 been resolved in the APM2.  That is, do I have to wait for complete boot up before applying ESC power anymore?

Anyway, 2.6 has been great for me in every way.  The Rate and…"

"Many people use the throttle curve adjustment on their Tx, so that in the mid range they are able to flatten out the "ramp" to make it less touchy.  If you have not calibrated your ESC's that may help also.  Make sure on your TX settings that you…"

"I do think that punching it can be a problem.  With basic PIDs the multicopter will lift quite calmly off the ground.  A violent flip that breaks props is not an operator error, unless you are in manual mode and do not know how to fly.  Bad…"

"Well you know the issue can be in a number of places.  A flaky UBEC, wiring or a ESC maybe.  It would be of some interest to know after the flip if the APM is in a dis-armed state.  This might indicate that the APM has rebooted.  A brief power…"

"Have you performed the compass calibration?  Being un-calibrated (or electrical interference) may cause the compass to shift.  Try the calibration method of spinning the copter on all 3 axis' first."

"Can I ask first... are you speaking about a Quad or a Tri copter, you mention only 3 esc's? If you are speaking of a quad (4 motor) and it is pulling in the opposite direction of where that motor is located, motor F.L. and pulling B.R., then that…"

"The file worked well for me. Very quick and no creep"

"Thanks, I have been asking about this for the last 4 weeks and no one has commented on it.  Good research.  I will try this out."

"What is needed is simply a linear system.  Right now the gimbal control is too slow to keep up with the movement.  If I roll the quad and then return, the gimbal slowly returns to center, it creeps the last little bit.  No dampening is needed here. …"

"A little confused about red LED, one time you say it is flashing and another time you say you never see it.
So when you say arm, are you refering to getting the Red LED to stay solid?  This means the APM is armed.  Motors fail to arm themselves if…"

"Vin
I would say that 1 meter is somewhat low for AH on its own, considering ground preasure changes.  But I see with AH after JS's statement that you need to find where the center Hover throttle point is on your quad.  Let the quad settle for a…"