Tail issue with Tarot ZYX

[kdrcguy]

I have upgraded to the ZYX about 2 months ago and I like it a lot. It is great for sport flying but I have found a problem with it doing more demanding stuff. When I do heavy + and - pitch pumps the tail blows out and the heli starts to turn to the left on its own. I get no blowouts in heavy single pitch pumps but up and down it really starts to show.

I would appreciate your input on how to solve this issue because I will be getting into doing more 3D and I would like a capable bird.

Today I was doing tic tocs for the first time and the tail does not hold for very long. I ended up flying my bird to the right and recovering.

I realize the I can set the Tail Compensate Collective to Tail parameter, and I have tried it, but that gives me a tail jump to the right with a heavy pitch pump which is not desirable, but may compensate for continuous pitch pumps.

Here is my setup:

Blade 450 3D
Tarot ZYX controller
Tarot FBL head
Hitec 5065MG cyclic servos running 6V
Hitec 5084 tail servo running 6V
Scorpion 2221-8 V2 motor with 11t pinion
CC Ice Lite 50 ESC no gov
Align 325F CF blades
KBDD tail blades
Stock rx
Align Trex 450 Sport canopy
100% TC
Linear PC in stunt mode
12 collective pitch
10 cyclic pitch

ZYX Settings:

Main Rotor

roll pitch
p 65 65
i 90 90
d 30 30
accel 125 decel 55
rc dband 40 gyro dband 4

Tail Rotor

p 75
i 50
d 0
accel l 125 r 125
decel l 30 r 30
rc dband 60 gyro dband 4

t comp cyclic 0 t comp collective 0
zero pitch 0

Main Rotor

roll
agility gain
40 40

pitch
40 40

Tail Rotor
yaw l yaw r gain
40 40 100

Radio DX6i

aile elev DR 100 Expo 15% (stunt mode)

travel adj 100%

gyro
69% HH
30% rate (not used)

flight time 4:30 min

Thanks for your input.