Need help on my easily fish tail mugen

Current setting
Diff: 5 7 5
Rear toe: 3 deg
Shock mount: middle position for front and rear at tower and outer most position at lower
Caster: neutral
Ackerman : 1st hole (nearer to front bulkhead)
Servo: rsx respond for throttle and torque for steering
Tx: Eurus

I had tried diff setting at 7 7 7, it feels better but still it has the fish tail feel, when it compares to other mugen that are running 5 7 3, 7 7 3 or 7 5 3.

Copied their setting and tried, still have the same feel. I even set my sterring speed slower, and loosen my servo saver.....

Appreciate inputs