"No, as I understand it the zener must be reversed.
That's what it shows in the official http://ardupilot.org/plane/docs/common-powering-the-pixhawk.html#co...

And I also researched elsewhere on the net as i wasn't sure about it."

"I had no luck fixing the problem with AC3.2 on APM. Very low PID did reduce wag but made handling poor in even low wind. I have upgraded to pixhawk. I assumed I'd be trying AC3.4 but it shows AC3.3 as current release. Haven't flown yet. But.…"

"In AC3.2 I didn't have the ablilty to change
ATC_RAT_YAW_FILT
I did have ATC_SLEW_YAW which I altered , tbh I am not sure it should be so high I altered it from only 1000 to 18000, hope it doesn't do some dramatic turns when going around a way…"

"Thanks so much. That info has certainly given me something new to try.
Atm I have:
Stab_yaw_p: 2 - 5 adjustable radio tuning.
Yaw_p: 0.2
Yaw_i: 0.02
Yaw_d: 0.001
Haven't previously tried altering any other setting you mentioned.
Do you think it…"

"Damn that's a shame, I have been researching this for a while the info in different places!

Do you think the problem would be impossible to fix with AC3.2 . APM won't work with 3.3+ .
I am happy to upgrade hardware, but I want to know what to…"

"Thanks artem.
Did 3.4 version specifically make an improvement for tricopters?

I have looked on that other forum but not sure if I found the right post, was this it?
http://discuss.ardupilot.org/t/ac3-4-tricopter-specific-parameters/...

Tbh from…"

"Hi, hope it's not too late to contribute to this thread, did the 3.4 release improve the yaw wag at all?
I am still on APM 3.2 , I get a small amount of wag, it's hardly noticeable live and I've often thought I fixed it, only to be disappointed by…"

"yeah you are right, I get exactly as you describe turdsurfer also. However I am using Arducopter 3.2 which isn't the very latest. Maybe 3.3 has an improvement?  I can't test atm because you need to use Pixhawk hardware for 3.3.

I also used to use…"

"Hi sorry I didn't notice your question before.
My Tricopter has front left spinning anti clockwise, front right spinning clockwise, tail anti clockwise.
imo by having one running counter it requires less tail throw to keep it from spinning, and I've…"

"No info?

I am trying to find out what is normal behaviour for RTL when on ground and throttle armed, my plane perhaps thought it was in the air , the servos were oscillating. I can't be the only one wanting to know what to expect when testing on…"

"I've just started having problems with Auto Analysis , I am using MP v1.3.39, Arduplane 3.6
I have only recently started using plane, but I've used arducopter for 2 years without problem.
MP does load an older log from plane 3.4 but my latest logs…"

"Hi , sorry for slow reply.
I put my Bix3 away for Christmas, and haven't had it back out yet, we had a very wet and windy January, I wouldn't mind flying in less than perfect conditions once I have it setup well, but at the moment I don't want it…"

"What about Stabilize mode? does that use GPS also?   if not shouldn't FBWA auto switch to that if it loses GPS lock."

"Could this also be related to GPS lock?
As another thread found: http://diydrones.com/forum/topics/fbwa-servo-jitter-when-gps-has-no..."

"Wow I have this issue too.
Hope this is the solution Hans, gonna temporarily turn that setting off to test.

At the moment I haven't flown with current setup.  Bix3, Pixhawk, Arduplane 3.4,  just trying to make sure I am happy with moments on the…"