Is anyone having problems with there 130x tail blowing out occasional during 3d flight causing the heli to piro anti clockwise out of control?

It doesn’t happen all the time. Today I flew 5 batteries, during battery 1 and 2 the tail blow out once for each battery causing it to piro out of control and crash (no damage & no repair was required). All the gears were brand new (just replaced) for flight 1 and all the gears are still sat correctly. Battery 3, 4 and 5 had no problems.

I’ve checked all 4 tail gears and there are no problems or missing teeth; it’s just strange 2 out of 5 flights had a problem and 3 were perfect even though nothing had changed on the heli. I also don’t think I was pushing the heli so hard it caused the tail to blow out; I actually think I pushed the heli harder in battery 3, 4 and 5.

I don’t think it’s a problem with tail slop as I’ve had this problem with stock and now the upgraded tail to a microheli tail blade grips and rakoheli tail pitch slider which has taken away most of the slop and all vibes.

This heli is great; I just want a little more confidence in the tail hold!

Any ideas on the cause and solution/fix?